Functions and Analysis

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Recent submissions

Any replacements are listed further down

[250] viXra:1711.0374 [pdf] submitted on 2017-11-20 12:19:23

Solutions of the KdV Equations

Authors: Antoine Balan
Comments: 2 pages, written in french

Here, the generalized KdV equations are solved. An example is given, linking the solutions to elliptic curves.
Category: Functions and Analysis

[249] viXra:1711.0356 [pdf] submitted on 2017-11-18 15:54:02

On the Attempt to Use a Stochastic Interpretation to Compute the Trace of a Regular Representation U on X = Ak/k*

Authors: Matanari Shimoinuda
Comments: 12 Pages.

The group X, which is proposed by A.Connes, is an interesting thing for number theory. Let's think of the trace of a regular representation U on X of the idele class. However it is hard to compute it since X is non-compact. In this article, we try to show that the trace is computable.
Category: Functions and Analysis

[248] viXra:1711.0298 [pdf] submitted on 2017-11-13 20:01:20

Some Infinite "Continuous" Products Over the Interval (0,1)

Authors: D Williams
Comments: 3 Pages.

Some "continuous" (that is, over real numbers in the interval (0,1)) infinite products are given with their finite product approximations. THESE PRODUCTS DESERVE MORE STUDY.
Category: Functions and Analysis

[247] viXra:1711.0297 [pdf] submitted on 2017-11-13 20:05:52

Dx-less Integrals

Authors: D Williams
Comments: 3 Pages.

Some examples of dx-less integrals are given with their finite sum approximations. They appear to have use in estimating long-term values of certain stochastic recursive functions. A request is made for determining convergence of such integrals.
Category: Functions and Analysis

[246] viXra:1711.0257 [pdf] submitted on 2017-11-09 15:57:32

Improvement on Stirling's Formula for n! Using Product Integrals

Authors: D Williams
Comments: 10 Pages.

An improved version of Stirling's Formula (which I call Neylon's Approximation) for n! is constructed using Product Integrals.
Category: Functions and Analysis

[245] viXra:1710.0246 [pdf] submitted on 2017-10-22 16:35:58

Prime Enumerability.

Authors: Paris Samuel Miles-Brenden
Comments: 2 Pages. Riemann-Zeta Note.

None.
Category: Functions and Analysis

[244] viXra:1710.0140 [pdf] submitted on 2017-10-12 11:04:15

Chur-Type Theorems for K-Triangular Lattice Group-Valued Set Functions with Respect to Filter Convergence

Authors: Antonio Boccuto, Xenofon Dimitriou
Comments: 4 Pages.

We prove some Schur and limit theorems for lattice group-valued k-triangular set functions with respect to filter convergence, by means of sliding hump-type techniques. As consequences, we deduce some Vitali-Hahn-Saks and Nikodym-type theorems.
Category: Functions and Analysis

[243] viXra:1710.0126 [pdf] submitted on 2017-10-11 21:03:23

Matematical Certainty

Authors: Paris Samuel Miles-Brenden
Comments: 2 Pages. Mathematical certainty often does not translate; but here the stringent analytical means of it's establishment are presented.

Mathematical certainty is defined in terms of sets and deterministic variables; in terms of the error root mean squared deviation.
Category: Functions and Analysis

[242] viXra:1710.0083 [pdf] submitted on 2017-10-08 03:04:30

Non-Standard General Numerical Methods for the Direct Solution of Differential Equations not Cleared in Canonical Forms

Authors: Carlos Oscar Rodríguez Leal
Comments: 16 Pages. Paper writting in spanish. Paper presented at the VII International Congress of Numerical Methods, CUCEI, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico.

In this work I develop numerical algorithms that can be applied directly to differential equations of the general form f (t, x, x ) = 0, without the need to cleared x . My methods are hybrid algorithms between standard methods of solving differential equations and methods of solving algebraic equations, with which the variable x is numerically cleared. The application of these methods ranges from the ordinary differential equations of order one, to the more general case of systems of m equations of order n. These algorithms are applied to the solution of different physical-mathematical equations. Finally, the corresponding numerical analysis of existence, uniqueness, stability, consistency and convergence is made, mainly for the simplest case of a single ordinary differential equation of the first order.
Category: Functions and Analysis

[241] viXra:1710.0036 [pdf] submitted on 2017-10-03 21:20:37

Laws of General Solutions of Partial Differential Equations

Authors: Hong Lai Zhu
Comments: 18 Pages.

In this paper, four kinds of Z Transformations are proposed to get many laws of general solutions of mth-order linear and nonlinear partial differential equations with n variables. Some general solutions of first-order linear partial differential equations, which cannot be obtained by using the characteristic equation method, can be solved by the Z Transformations. By comparing, we find that the general solutions of some first-order partial differential equations got by the characteristic equation method are not complete.
Category: Functions and Analysis

[240] viXra:1709.0442 [pdf] submitted on 2017-09-30 11:38:21

Causality

Authors: Antoine Warnery
Comments: 11 Pages. French

The purpose of this study is to explore the mathematical principle of causality.
Category: Functions and Analysis

[239] viXra:1709.0393 [pdf] submitted on 2017-09-26 07:41:30

Neumann Series Seen as Expansion Into Bessel Functions J_{n} Based on Derivative Matching.

Authors: Andrej Liptaj
Comments: 8 Pages. Text presents known results.

Multiplicative coefficients of a series of Bessel functions of the first kind can be adjusted so as to match desired values corresponding to a derivatives of a function to be expanded. In this way Neumann series of Bessel functions is constructed. Text presents known results.
Category: Functions and Analysis

[238] viXra:1709.0357 [pdf] submitted on 2017-09-23 12:37:20

The Kakeya Tube Conjecture Implies the Kakeya Conjecture

Authors: Johan Aspegren
Comments: 3 Pages.

In this article we will give a proof that the Kakeya tube conjecture implies the Kakeya conjecture.
Category: Functions and Analysis

[237] viXra:1709.0310 [pdf] submitted on 2017-09-20 13:49:06

Calculation of the Sum for Sequence of Square Natural Numbers. Russian

Authors: Misha Mikhaylov
Comments: 2 Pages.

This is the Russian version of my previous publication.
Category: Functions and Analysis

[236] viXra:1709.0305 [pdf] submitted on 2017-09-20 13:07:26

Calculation of the Sum for Sequence of Square Natural Numbers

Authors: Misha Mikhaylov
Comments: 2 Pages.

This sum for natural values is, of course, already calculated by Bernoulli himself – at least modern or relatively recent authors that deal with it usually refer to take into account Bernoulli numbers. But, apparently, this method is rather cumbersome. Therefore, there can be suggested another, easier way to do this, but without claiming of its superfluous rigidity.
Category: Functions and Analysis

[235] viXra:1709.0304 [pdf] submitted on 2017-09-20 07:24:33

Boys' Function Computed by Gauss-Jacobi Quadrature

Authors: Richard J. Mathar
Comments: 48 Pages. Most of the content is the source code listing

Boys' Function F_m(z) that appears in the quantum mechanics of Gaussian Type Orbitals is a special case of Kummer's confluent hypergeometric function. We evaluate its integral representation of a product of a power and an exponential function over the unit interval with the numerical Gauss-Jacobi quadrature. We provide an implementation in C for real values of the argument z which basically employs a table of the weights and abscissae of the quadrature rule for integer quantum numbers m <= 129.
Category: Functions and Analysis

[234] viXra:1709.0281 [pdf] submitted on 2017-09-18 20:00:56

On the Kakeya Conjecture

Authors: Johan Aspegren
Comments: 3 Pages.

In this paper we will prove a theorem that implies the Kakeya conjecture.
Category: Functions and Analysis

[233] viXra:1709.0113 [pdf] submitted on 2017-09-10 07:44:48

On Kakeya Set Conjecture

Authors: Johan Aspegren
Comments: 5 Pages.

In this article we will prove the Kakeya set conjecture. In addition we will prove that in the usual approach to the Kakeya maximal function conjecture we can assume that the tube-sets are maximal. Moreover, we will construct a tube- set were the well known L2 bound for the Kakeya maximal function is attained.
Category: Functions and Analysis

[232] viXra:1709.0047 [pdf] submitted on 2017-09-05 05:45:21

Describing a Fluid Motion with 3-D Rectangular Coordinates

Authors: Valdir Monteiro dos Santos Godoi
Comments: 9 Pages.

We describe a fluid in three-dimensional motion with at most one spatial variable by rectangular coordinate, beyond time, and conclude on the breakdown of Euler and Navier-Stokes solutions and the necessity of use of vector pressure.
Category: Functions and Analysis

[231] viXra:1708.0123 [pdf] submitted on 2017-08-11 10:14:24

Describing a Fluid in Three-Dimensional Circular Motion with One Independent Variable by Rectangular Coordinate

Authors: Valdir Monteiro dos Santos Godoi
Comments: 4 Pages.

Describe a fluid in three-dimensional circular motion with one independent variable by rectangular coordinate and concludes on the breakdown of Euler and Navier-Stokes equations.
Category: Functions and Analysis

[230] viXra:1708.0006 [pdf] submitted on 2017-08-02 03:18:34

Two Compartmental Mathematical Analysis of the Diffusion of a Therapeutic Agent in Human Tissues

Authors: E. U. Agom, M. S. Atureta
Comments: 4 Pages. ijsr.net publication

In this paper, we present a unified minimal compartmental model to estimate mathematically the concentration of a Therapeutic Agent injected intravenously in a steady state into Human tissues divided into two compartments; the blood and tissues. The model takes into consideration most, if not all physiological factors of the Human system in conformity with the physical realities vis-a-vis the Therapeutic Agent concentration before uptake by the compartments. The models were a system of first order non-homogeneous ordinary differential equations. And, the result from the models gives a zero concentration in both the blood and the tissues before the advent of the Therapeutic agent.
Category: Functions and Analysis

[229] viXra:1708.0005 [pdf] submitted on 2017-08-02 03:37:25

Application of Adomian Decomposition Method in Solving Second Order Nonlinear Ordinary Differential Equations

Authors: E. U. Agom, A. M. Badmus
Comments: 6 Pages. ijesi.org paper

In this paper, we use Adomian Decomposition Method to numerically analyse second order nonlinear ordinary differential equations and implement the continuous algorithm in a discrete domain. This is facilitated by Maple package. And, the results from the two test problems used shows that the Adomian Decomposition Method is almost as the classical solutions.
Category: Functions and Analysis

[228] viXra:1707.0246 [pdf] submitted on 2017-07-18 08:02:22

Neutrosophic Crisp Mathematical Morphology

Authors: Eman.M.El-Nakeeb, Hewayda ElGhawalby, A.A.Salama, S.A.El-Hafeez
Comments: 13 Pages.

In this paper, we aim to apply the concepts of the neutrosophic crisp sets and its operations to the classical mathematical morphological operations, introducing what we call "Neutrosophic Crisp Mathematical Morphology". Several operators are to be developed, including the neutrosophic crisp dilation, the neutrosophic crisp erosion, the neutrosophic crisp opening and the neutrosophic crisp closing.Moreover, we extend the definition of some morphological filters using the neutrosophic crisp sets concept. For instance, we introduce the neutrosophic crisp boundary extraction, the neutrosophic crisp Top-hat and the neutrosophic crisp Bottom- hat filters.The idea behind the new introduced operators and filters is to act on the image in the neutrosophic crisp domain instead of the spatial domain.
Category: Functions and Analysis

[227] viXra:1707.0155 [pdf] submitted on 2017-07-11 08:27:57

On a Problem in Euler and Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 27 Pages.

A study respect to a problem found in the equations of Euler and Navier-Stokes, whose adequate treatment solves a centennial problem about the solution of these equations and a most correct modeling of fluid movement.
Category: Functions and Analysis

[226] viXra:1707.0131 [pdf] submitted on 2017-07-09 17:37:53

New Infinite Product Representation for Cosine Function and Power Series for Tangent Function

Authors: Edigles Guedes
Comments: 3 Pages.

In this paper, I demonstrate one new infinite product representation for cosine function, one new power series representation for tangent function and amazing identities involving radical.
Category: Functions and Analysis

[225] viXra:1707.0130 [pdf] submitted on 2017-07-09 17:41:03

New Proof of the Infinite Product Representation for Gamma Function and Pochhammer's Symbol and New Infinite Product Representation for Binomial Coefficient

Authors: Edigles Guedes, Cícera Guedes
Comments: 6 Pages.

In this paper, we demonstrate some limit's formulae for gamma function and binomial coefficient among other things.
Category: Functions and Analysis

[224] viXra:1706.0008 [pdf] submitted on 2017-06-01 15:48:08

Possible Demonstratio of the Riemann Hypothesis

Authors: Wilson Torres Ovejero
Comments: 12 Pages.

In mathematics, today there are six problems that take up to 200 years without solution, one of them is the demonstration of the Riemann hypothesis; Today I present a possible demonstration of this hypothesis that has spent 10 years of my life in its possible demonstration and I hope to have achieved it.
Category: Functions and Analysis

[223] viXra:1705.0410 [pdf] submitted on 2017-05-29 06:39:46

New Principles of Differential Equations Ⅰ

Authors: Hong Lai Zhu
Comments: 71 Pages.

This is the first part of the total paper. Since the theory of partial differential equations (PDEs) has been established nearly 300 years, there are many important problems have not been resolved, such as what are the general solutions of Laplace equation, acoustic wave equation, Helmholtz equation, heat conduction equation, Schrodinger equation and other important equations? How to solve the problems of definite solutions which have universal significance for these equations? What are the laws of general solution of the mth-order linear PDEs with n variables (n,m≥2)? Is there any general rule for the solution of a PDE in arbitrary orthogonal coordinate systems? Can we obtain the general solution of vector PDEs? Are there very simple methods to quickly and efficiently solve the exact solutions of nonlinear PDEs? And even general solution? Etc. These problems are all effectively solved in this paper. Substituting the results into the original equations, we have verified that they are all correct.
Category: Functions and Analysis

[222] viXra:1705.0399 [pdf] submitted on 2017-05-28 00:50:44

Variable Axis Angles in Coordinate Systems Part. 1 (Ziennokątowe Układy Współrzędnych)

Authors: Andrzej Peczkowski
Comments: 15 Pages.

This is mathematics where the axes of the OX and OY coordinate systems do not intersect at right angles. Hi 1 is the OY axis that crosses the OX axis at any angle.
Category: Functions and Analysis

[221] viXra:1705.0398 [pdf] submitted on 2017-05-28 00:55:17

Variable Axis Angles in Coordinate Systems Part.2 (Zmiennokątowe Układy Współrzęnych)

Authors: Andrzej Peczkowski
Comments: 14 Pages.

This is mathematics where the axes of the OX and OY coordinate systems do not intersect at right angles. Hi 1 is the OX axis that crosses the OY axis at any angle.
Category: Functions and Analysis

[220] viXra:1705.0397 [pdf] submitted on 2017-05-28 01:04:24

Variable Axis Angles in Coordinate Systems Part. 3 (Zmiennokątowe Układy Współrzędnych )

Authors: Andrzej Peczkowski
Comments: 17 Pages.

This is mathematics where the axes of the OX and OY coordinate systems do not intersect at right angles. Part 3. Axes OX and OY intersect at any angle
Category: Functions and Analysis

[219] viXra:1705.0249 [pdf] submitted on 2017-05-16 08:26:20

Decomposition of Exponential Function Into Derivative Ring. Derivative Ring: Suitable Basis for Derivative-Matching Approximations.

Authors: Andrej Liptaj
Comments: 6 Pages.

A set of functions which allows easy derivative-matching is proposed. Several examples of approximations are shown.
Category: Functions and Analysis

[218] viXra:1705.0165 [pdf] submitted on 2017-05-09 17:00:33

One Word: Navier-Stokes

Authors: Nicholas R. Wright
Comments: 6 Pages.

We prove the Navier-Stokes equations, by means of the Metabolic Theory of Ecology and the Rule of 72. Macroecological theories are proof to the Navier-Stokes equations. A solution could be found using Kleiber’s Law. Measurement is possible through the heat calorie. A Pareto exists within the Navier-Stokes equations. This is done by superposing dust solutions onto fluid solutions. In summary, the Navier-Stokes equations require a theoretical solution. The Metabolic Theory of Ecology, along with Kleiber’s Law, form a theory by such standards.
Category: Functions and Analysis

[217] viXra:1705.0028 [pdf] submitted on 2017-05-02 15:33:07

An Efficient Computational Method for Handling Singular Second-Order, Three Points Volterra Integrodifferenital Equations

Authors: Morad Ahmad; Shaher Momani; Omar Abu Arqub; Mohammed Al-Smadi; Ahmed Alsaedi
Comments: 13 Pages.

In this paper, a powerful computational algorithm is developed for the solution of classes of singular second-order, three-point Volterra integrodifferential equations in favorable reproducing kernel Hilbert spaces. The solutions is represented in the form of series in the Hilbert space W₂³[0,1] with easily computable components. In finding the computational solutions, we use generating the orthogonal basis from the obtained kernel functions such that the orthonormal basis is constructing in order to formulate and utilize the solutions. Numerical experiments are carried where two smooth reproducing kernel functions are used throughout the evolution of the algorithm to obtain the required nodal values of the unknown variables. Error estimates are proven that it converge to zero in the sense of the space norm. Several computational simulation experiments are given to show the good performance of the proposed procedure. Finally, the utilized results show that the present algorithm and simulated annealing provide a good scheduling methodology to multipoint singular boundary value problems restricted by Volterra operator.
Category: Functions and Analysis

[216] viXra:1704.0282 [pdf] submitted on 2017-04-21 20:56:48

The Asymptotic Behavior of Defocusing Nonlinear Schrödinger Equations

Authors: En-Lin Liu
Comments: 6 Pages. Quite trivial research XD

This article is concerned with the scattering problem for the defocusing nonlinear Schrödinger equations (NLS) with a power nonlinear |u|^p u where 2/n < p < 4/n. We show that for any initial data in H^{0,1} x the solution will eventually scatter, i.e. U(-t)u(t) tends to some function u+ as t tends to innity.
Category: Functions and Analysis

[215] viXra:1704.0030 [pdf] submitted on 2017-04-04 03:53:37

Examples of Approximations by Series Based on Derivatives Matching

Authors: Andrej Liptaj
Comments: 11 Pages.

Inspired by Taylor polynomials, several other approximations based on derivative-matching are proposed.
Category: Functions and Analysis

[214] viXra:1703.0295 [pdf] submitted on 2017-03-31 06:45:36

Higher Order Derivatives of the Inverse Function

Authors: Andrej Liptaj
Comments: 7 Pages.

A general recursive and limit formula for higher order derivatives of the inverse function is presented. The formula is next used in couple of mathematical applications: expansion of the inverse function into Taylor series, solving equations, constructing random numbers with a given distribution from uniformly distributed randomnumbers and expanding a function in the neighborhood of a given point in an alternative way to the Taylor expansion.
Category: Functions and Analysis

[213] viXra:1703.0261 [pdf] submitted on 2017-03-28 03:24:35

Field Equations

Authors: J.A.J. van Leunen
Comments: 4 Pages.

Field equations occur in many physical theories. Most dynamic fields share a set of first and second order partial differential equations and differ in the kinds of artifacts that cause discontinuities. The paper restricts to first and second order partial differential equations. These equations can describe the interaction between the field and pointlike artifacts. The paper treats periodic and one-shot triggers in maximally three spatial dimensions. The paper applies quaternionic differential calculus. It uses the quaternionic nabla operator. This configuration implements the storage of dynamic geometric data as a combination of a proper timestamp and a three-dimensional spatial location in a quaternionic storage container. The storage format is Euclidean. The paper introduces warps and clamps as new types of super-tiny objects that constitute higher order objects.
Category: Functions and Analysis

[212] viXra:1703.0253 [pdf] submitted on 2017-03-27 00:05:14

Universal Evolution Model

Authors: Ramesh Chandra Bagadi
Comments: 9 Pages.

In this research investigation, the author has prevented a novel scheme of Universal Evolution Model.
Category: Functions and Analysis

[211] viXra:1703.0184 [pdf] submitted on 2017-03-19 09:23:11

Density Problem of Périat

Authors: F.L.B. Périat
Comments: 2 Pages.

This could help science going faster.
Category: Functions and Analysis

[210] viXra:1703.0135 [pdf] submitted on 2017-03-13 17:20:52

Global in Time Solvability of Incompressive NSIVP in the Whole Space

Authors: Naoya Isobe
Comments: 13 Pages.

Global in time solvability of incompressive Navier-Stokes initial value problem in the whole space is proved using time transformation analysys.
Category: Functions and Analysis

[209] viXra:1703.0134 [pdf] submitted on 2017-03-13 17:22:16

Key point of the proof (Global in Time Solvability of Incompressive NSIVP in the Whole Space)

Authors: Naoya Isobe
Comments: 1 Page.

Key point of the proof (Global in Time Solvability of Incompressive NSIVP in the Whole Space).
Category: Functions and Analysis

[208] viXra:1703.0133 [pdf] submitted on 2017-03-13 17:59:21

Global in Time Solvability of Incompressive Nsivp in Periodic Space

Authors: Naoya Isobe
Comments: 15 Pages.

Global in time solvability of incompressive Navier-Stokes initial value problem in periodic space is proved using time transformation analysys.
Category: Functions and Analysis

[207] viXra:1703.0132 [pdf] submitted on 2017-03-13 18:00:32

Key Point of the Proof (Global in Time Solvability of Incompressive Nsivp in Periodic Space)

Authors: Naoya Isobe
Comments: 1 Page.

Key point of the proof (Global in Time Solvability of Incompressive NSIVP in periodic Space).
Category: Functions and Analysis

[206] viXra:1703.0121 [pdf] submitted on 2017-03-13 06:11:06

Global in Time Solvability of Incompressive Nsivp in the Whole Space (Japanese Version)

Authors: Naoya Isobe
Comments: 12 Pages.

Global in time solvability of incompressive Navier-Stokes initial value problem in the whole space is proved using time transformation analysys.
Category: Functions and Analysis

[205] viXra:1703.0120 [pdf] submitted on 2017-03-13 06:17:44

Key Point of the Proof (Global in Time Solvability of Incompressive Nsivp in the Whole Space) (Japanese Version)

Authors: Naoya Isobe
Comments: 1 Page.

Key point of the proof (Global in Time Solvability of Incompressive NSIVP in the Whole Space).
Category: Functions and Analysis

[204] viXra:1703.0119 [pdf] submitted on 2017-03-13 06:19:44

Global in Time Solvability of Incompressive Nsivp in Periodic Space (Japanese Version)

Authors: Naoya Isobe
Comments: 14 Pages.

Global in time solvability of incompressive Navier-Stokes initial value problem in periodic space is proved using time transformation analysys.
Category: Functions and Analysis

[203] viXra:1703.0118 [pdf] submitted on 2017-03-13 06:21:47

Key Point of the Proof (Global in Time Solvability of Incompressive Nsivp in Periodic Space) (Japanese Version)

Authors: Naoya Isobe
Comments: 1 Page.

Key point of the proof (Global in Time Solvability of Incompressive NSIVP in periodic Space).
Category: Functions and Analysis

[202] viXra:1703.0073 [pdf] submitted on 2017-03-07 21:27:59

On the Riemann Zeta Function

Authors: Jonathan Tooker
Comments: 5 Pages. Five figures. Uploading rough draft for posterity.

We discuss the Riemann zeta function and make an argument against the Riemann hypothesis. While making the argument in the classical formalism, we discuss the argument as it relates to the theory of infinite complexity. We extend Riemann's own (planar) analytic continuation $\mathbb{R}\to\mathbb{C}^2$ into (bulk) hypercomplexity with $\mathbb{C}^2\to\,^\star\mathbb{C}$.
Category: Functions and Analysis

[201] viXra:1702.0305 [pdf] submitted on 2017-02-24 10:49:41

The Gamma Function

Authors: James Bonnar
Comments: 163 Pages.

The Gamma Function is the finest book dedicated to the topic of the Gamma function. Written in an easily understandable manner, the book is well-suited for advanced undergraduates in science and mathematics. The book is concise and thorough, covering the most important aspects of the Gamma function. The Gamma function has important applications in probability theory, combinatorics and most, if not all, areas of physics. A large number of proofs and derivations of theorems and identities are covered in the book including: Analytic continuation of the factorials, properties via complex analysis, convexity and the Gamma function, the Beta function, Wallis's integrals, Wallis's product, product & reflection formulas, half-integer values, digamma and polygamma functions, series expansions, Euler-Mascheroni integrals, duplication & multiplication formulas, the Gamma and zeta function relationships, Hankel's contour integral representation, Stirling's formula, the Weierstrass factor theorem and the Mittag-Leffler theorem.
Category: Functions and Analysis

[200] viXra:1702.0119 [pdf] submitted on 2017-02-09 07:58:42

Lagrangian Solid Modeling

Authors: Matthew Marko
Comments: 114 pages including supplementary code

The author demonstrates a stable Lagrangian solid modeling method, tracking the interactions of solid mass particles, rather than using a meshed grid. This numerical method avoids the problem of tensile instability often seen with Smooth Particle Applied Mechanics by having the solid particles apply stresses expected with Hooke's law, as opposed to using a smoothing function for neighboring solid particles. This method has been tested successfully with a bar in tension, compression, and shear, as well as a disk compressed into a flat plate, and the numerical model consistently matched the analytical Hooke's law as well as Hertz contact theory for all examples. The solid modeling numerical method was then built into a 2-D model of a pressure vessel, which was tested with liquid water particles under pressure and simulated with Smoothed Particle Hydrodynamics. This simulation was stable, and demonstrated the feasibility of Lagrangian specification modeling for Fluid Solid Interactions.
Category: Functions and Analysis

[199] viXra:1702.0039 [pdf] submitted on 2017-02-03 03:27:16

Proof to Euler's Formula

Authors: Carl-Gustav Hedenby
Comments: 1 Page. -

The author proves Euler's formula for the imaginary exponential without reverting to series expansions.
Category: Functions and Analysis

[198] viXra:1701.0617 [pdf] submitted on 2017-01-26 01:27:43

Non-Trivial Extension of Real Numbers

Authors: Ilya Chernykh
Comments: 8 Pages. In Russian language

We propose an extension of real numbers which reveals a surprising algebraic role of Bernoulli numbers, Hurwitz Zeta function, Euler-Mascheroni constant as well as generalized summations of divergent series and integrals. We extend elementary functions to the proposed numerical system and analyze some symmetries of the special elements. This reveals intriguing closed-form relations between trigonometric and inverse trigonometric functions. Besides this we show that the proposed system can be naturally used for fine comparison between countable sets in metric space which respects the intuitive notion of the set's size.
Category: Functions and Analysis

[197] viXra:1701.0511 [pdf] submitted on 2017-01-15 16:19:44

An Introduction to Functions of a Quaternion Hypercomplex Variable - PART 5/6.

Authors: Stephen C. Pearson.
Comments: 42 Pages.

This particular submission contains a copy [PART 5/6] of the author's original paper and is therefore a continuation of his previous submission, namely - "An Introduction to Functions of a Quaternion Hypercomplex Variable - PART 4/6", which has been published under the 'VIXRA' Mathematics subheading:- 'Functions and Analysis'.
Category: Functions and Analysis

[196] viXra:1701.0510 [pdf] submitted on 2017-01-15 17:01:34

An Introduction to Functions of a Quaternion Hypercomplex Variable - PART 6/6.

Authors: Stephen C. Pearson.
Comments: 24 Pages.

This particular submission contains a copy [PART 6/6] of the author's original paper and is therefore a continuation of his previous submission, namely - "An Introduction to Functions of a Quaternion Hypercomplex Variable - PART 5/6", which has been published under the 'VIXRA' Mathematics subheading:- 'Functions and Analysis'.
Category: Functions and Analysis

[195] viXra:1701.0505 [pdf] submitted on 2017-01-15 14:34:25

An Introduction to Functions of a Quaternion Hypercomplex Variable - PART 3/6.

Authors: Stephen C. Pearson.
Comments: 42 Pages.

This particular submission contains a copy [PART 3/6] of the author's original paper and is therefore a continuation of his previous submission, namely - "An Introduction to Functions of a Quaternion Hypercomplex Variable - PART 2/6", which has been published under the 'VIXRA' Mathematics subheading:- 'Functions and Analysis'.
Category: Functions and Analysis

[194] viXra:1701.0504 [pdf] submitted on 2017-01-15 15:44:13

An Introduction to Functions of a Quaternion Hypercomplex Variable - PART 4/6.

Authors: Stephen C. Pearson.
Comments: 42 Pages.

This particular submission contains a copy [PART 4/6] of the author's original paper and is therefore a continuation of his previous submission, namely - "An Introduction to Functions of a Quaternion Hypercomplex Variable - PART 3/6", which has been published under the 'VIXRA' Mathematics subheading:- 'Functions and Analysis'.
Category: Functions and Analysis

[193] viXra:1701.0502 [pdf] submitted on 2017-01-15 11:15:18

An Introduction to Functions of a Quaternion Hypercomplex Variable - PART 1/6.

Authors: Stephen C. Pearson.
Comments: 42 Pages.

This particular submission contains (inter alia) a copy [PART 1/6] of the author's original paper, which was completed on 31st March 1984 and thus comprises a total of 161 handwritten foolscap pages. Subsequently, its purpose is to enunciate various definitions and theorems, which pertain to the following topics, i.e. (a) the algebra of quaternion hypercomplex numbers; (b) functions of a single quaternion hypercomplex variable; (c) the concepts of limit and continuity applied to such functions; (d) the elementary principles of differentiation and integration applied to quaternion hypercomplex functions. Many of the concepts presented therein are analogous to well established notions from real and complex variable analysis with any divergent results being due to the non-commutativity of quaternion products.
Category: Functions and Analysis

[192] viXra:1701.0501 [pdf] submitted on 2017-01-15 12:58:04

An Introduction to Functions of a Quaternion Hypercomplex Variable - PART 2/6.

Authors: Stephen C. Pearson.
Comments: 42 Pages.

This particular submission contains a copy [PART 2/6] of the author's original paper and is therefore a continuation of his previous submission, namely - "An Introduction to Functions of a Quaternion Hypercomplex Variable - PART 1/6", which has been published under the 'VIXRA' Mathematics subheading:- 'Functions and Analysis'.
Category: Functions and Analysis

[191] viXra:1701.0324 [pdf] submitted on 2017-01-08 04:19:38

Existence of Traveling Waves in the Fractional Burgers Equation

Authors: Adam Chmaj
Comments: 6 Pages. Original 2014 version of the result is posted here. Some minor corrections are left to the reader.

The existence of traveling waves for the fractional Burgers equation is established, using an operator splitting trick. This solves a 1998 open problem.
Category: Functions and Analysis

[190] viXra:1612.0413 [pdf] submitted on 2016-12-30 16:56:35

Area of Torricelli's Trumpet or Gabriel's Horn, Sum of the Reciprocals of the Primes, Factorials of Negative Integers

Authors: Sinisa Bubonja
Comments: 9 Pages.

In our previous work [1], we defined the method for computing general limits of functions at their singular points and showed that it is useful for calculating divergent integrals, the sum of divergent series and values of functions in their singular points. In this paper, we have described that method and we will use it to calculate the area of Torricelli's trumpet or Gabriel's horn, the sum of the reciprocals of the primes and factorials of negative integers.
Category: Functions and Analysis

[189] viXra:1612.0394 [pdf] submitted on 2016-12-29 16:05:22

Perceptive or P-Calculus: Ordinale & Residuale Noesis

Authors: Arthur Shevenyonov
Comments: 10 Pages. novel foundations

An early formal glimpse at a survey of results yet to be revealed bridging topics as diverse as, the extensions of Cauchy functional equation, Taylor expansion, ABC conjecture, and Fermat LP to name but a few.
Category: Functions and Analysis

[188] viXra:1612.0245 [pdf] submitted on 2016-12-14 08:14:24

New Expansions in Series for Tangent and Secant Functions

Authors: Edigles Guedes
Comments: 3 Pages.

In this paper, the author proved new expansions in series for tangent and secant functions.
Category: Functions and Analysis

[187] viXra:1612.0238 [pdf] submitted on 2016-12-14 01:05:36

On the Navier-Stokes Equations

Authors: Daniel Thomas Hayes
Comments: 7 Pages.

The problem on the existence and smoothness of the Navier--Stokes equations is considered.
Category: Functions and Analysis

[186] viXra:1611.0368 [pdf] submitted on 2016-11-26 20:05:27

Infinite Product Representations for Gamma Function and Binomial Coefficient

Authors: Edigles Guedes
Comments: 7 Pages.

In this paper, I demonstrate one new infinite product for binomial coefficient and news Euler's and Weierstrass's infinite product for Gamma function among other things.
Category: Functions and Analysis

[185] viXra:1611.0073 [pdf] submitted on 2016-11-05 14:49:21

Coefficient-of-determination Fourier Transform CFT

Authors: Matthew Marko
Comments: 13 Pages, English

This algorithm is designed to perform Discrete Fourier Transforms (DFT) to convert temporal data into spectral data. What is unique about this DFT algorithm is that it can produce spectral data at any user-defined resolution; existing DFT methods such as FFT are limited in resolution proportional to the temporal resolution. This algorithm obtains the Fourier Transforms by studying the Coefficient of Determination of a series of artificial sinusoidal functions with the temporal data, and normalizing the variance data into a high-resolution spectral representation of the time-domain data with a finite sampling rate.
Category: Functions and Analysis

[184] viXra:1611.0056 [pdf] submitted on 2016-11-04 07:11:54

How to Project Onto Extended Second Order Cones

Authors: O. P. Ferreira, S. Z. Németh
Comments: 10 Pages.

The extended second order cones were introduced by G. Zhang and S. Z. N\'emeth for solving mixed complementarity problems and variational inequalities on cylinders. R. Sznajder determined the automorphism groups and the Lyapunov or bilinearity ranks of these cones. G. Zhang and S. Z. Németh found both necessary conditions and sufficient conditions for a linear operator to be a positive operator of an extended second order cone. This note will give formulas for projecting onto the extended second order cones. In the most general case the formula will depend on a piecewise linear equation for one real variable which will be solved by using numerical methods.
Category: Functions and Analysis

[183] viXra:1611.0049 [pdf] submitted on 2016-11-03 23:41:33

In nite Product Representations for Binomial Coefcient, Pochhammer's Symbol, Newton's Binomial and Exponential Function

Authors: Edigles Guedes
Comments: 15 Pages.

In this paper, I demonstrate one infinite product for binomial coefficient, Euler's and Weierstrass's infinite product for Pochhammer's symbol, limit formula for Pochhammer's symbol, limit formula for exponential function, Euler's and Weierstrass's infinite product for Newton's binomial and exponential function, among other things.
Category: Functions and Analysis

[182] viXra:1611.0002 [pdf] submitted on 2016-11-01 01:50:33

Numerical Solution of Linear, Nonhomogeneous Differential Equation Systems via Padé Approximation

Authors: Kenneth C. Johnson
Comments: 13 Pages.

This paper generalizes an earlier investigation of linear differential equation solutions via Padé approximation (viXra:1509.0286), for the case of nonhomogeneous equations. Formulas are provided for approximation orders 2, 4, 6, and 8, for both constant-coefficient and functional-coefficient cases. The scale-and-square algorithm for the constant-coefficient case is generalized for nonhomogeneous equations. Implementation details including step size initialization and tolerance control are discussed.
Category: Functions and Analysis

[181] viXra:1610.0278 [pdf] submitted on 2016-10-23 16:35:25

Applying the Second Order Two-Scale Approximation to a Dispersive Wave Equation

Authors: Yigal Gurevich
Comments: 8 Pages.

The method of multiple scales is applied and the second order two-scale approximation is calculated for a linear dispersive wave equation with a small perturbation proportional to the amplitude cubed.
Category: Functions and Analysis

[180] viXra:1610.0244 [pdf] submitted on 2016-10-21 04:28:14

Operator Exponentials for the Clifford Fourier Transform on Multivector Fields in Detail

Authors: David Eelbode, Eckhard Hitzer
Comments: 16 Pages. published in Advances in Applied Clifford Algebras, 26(3), pp. 953-968 (2016), Online First: 22 Oct. 2015, DOI: 10.1007/s00006-015-0600-7.

In this paper we study Clifford Fourier transforms (CFT) of multivector functions taking values in Clifford’s geometric algebra, hereby using techniques coming from Clifford analysis (the multivariate function theory for the Dirac operator). In these CFTs on multivector signals, the complex unit i∈C is replaced by a multivector square root of −1, which may be a pseudoscalar in the simplest case. For these integral transforms we derive an operator representation expressed as the Hamilton operator of a harmonic oscillator.
Category: Functions and Analysis

[179] viXra:1609.0349 [pdf] submitted on 2016-09-25 01:25:44

Solutions for Euler and Navier-Stokes Equations in Finite and Infinite Series of Time

Authors: Valdir Monteiro dos Santos Godoi
Comments: 17 Pages.

We present solutions for the Euler and Navier-Stokes equations in finite and infinite series of time, in spatial dimension N=3, firstly based on expansion in Taylor’s series of time and at end concluding on necessity of solutions for velocity given by irrotational vectors, for incompressible flows and conservative external force.
Category: Functions and Analysis

[178] viXra:1609.0141 [pdf] submitted on 2016-09-11 08:38:51

Solutions for Euler and Navier-Stokes Equations in Powers of Time

Authors: Valdir Monteiro dos Santos Godoi
Comments: 7 Pages.

We present a solution for the Euler and Navier-Stokes equations for incompressible case given any smooth (C^∞) initial velocity, pressure and external force in N=3 spatial dimensions, based on expansion in Taylor’s series of time. Without major difficulties, it can be adapted to any spatial dimension, N≥1.
Category: Functions and Analysis

[177] viXra:1609.0074 [pdf] submitted on 2016-09-06 15:08:57

General Solution For Navier-Stokes Equations With Any Smooth Initial Data

Authors: Valdir Monteiro dos Santos Godoi
Comments: 6 Pages.

We present a solution for the Navier-Stokes equations for incompressible case with any smooth (C^∞) initial velocity given a pressure and external force in n = 3 spatial dimensions, based on expansion in Taylor’s series of time. Without major difficulties, it can be adapted to any spatial dimension, n≥1.
Category: Functions and Analysis

[176] viXra:1609.0006 [pdf] submitted on 2016-09-01 04:47:12

Adequate Quaternionic Generalization of Complex Differentiability

Authors: Michael Parfenov
Comments: 46 Pages.

Abstract: The high efficiency of complex analysis is attributable mainly to the ability to represent adequately the Euclidean physical plane essential properties, which have no counterparts on the real axis. In order to provide the similar ability in higher dimensions of space we introduce the general concept of essentially adequate differentiability, which generalizes the key features of the transition from real to complex differentiability. In view of this concept the known Cauchy-Riemann-Fueter equations can be characterized as inessentially adequate. Based on this concept, in addition to the usual complex definition, the quaternionic derivative has to be independent of the method of quaternion division: on the left or on the right. Then we deduce the generalized quaternionic Cauchy-Riemann equations as necessary and sufficient conditions for quaternionic functions to be H-holomorphic. We prove that each H-holomorphic function can be constructed from the C-holomorphic function of the same kind by replacing a complex variable by a quaternionic in an expression for the C-holomorphic function. It follows that the derivatives of all orders of H- holomorphic functions are also H-holomorphic and can be analogously constructed from the corresponding derivatives of C-holomorphic functions. The examples of Liouvillian elementary functions demonstrate the efficiency of the developed theory.
Category: Functions and Analysis

[175] viXra:1608.0432 [pdf] submitted on 2016-08-31 08:23:50

General Solution for Navier-Stokes Equations with Conservative External Force

Authors: Valdir Monteiro dos Santos Godoi
Comments: 10 Pages.

We present two proofs of theorems on solutions of the Navier-Stokes equations for incompressible case with a conservative external force in n = 3 spatial dimensions. Without major difficulties, it can be adapted to any spatial dimension, n>=1.
Category: Functions and Analysis

[174] viXra:1608.0394 [pdf] submitted on 2016-08-29 06:04:21

Limit Theorems for Lattice Group-Valued K-Triangular Set Functions

Authors: Antonio Boccuto, Xenofon Dimitriou
Comments: 2 Pages.

Using sliding hump-type techniques, we prove some Schur, Vitali-Hahn-Saks and Nikodým-type theorems for lattice group-valued k-triangular set functions.
Category: Functions and Analysis

[173] viXra:1608.0229 [pdf] submitted on 2016-08-21 11:27:59

One Dimensional Method for Clifford Analysis

Authors: Fu Yuhua
Comments: 12 Pages.

Unlike Dirac operator method, this paper discusses one dimensional method for Clifford analysis, namely the n-dimensional problem is simplified into n problems of one dimension, even reduced to only one problem of one dimension. For example, the typhoon track is a two-dimensional problem related to latitude and longitude, but as forecasting typhoon track, it can be simplified into two problems of one dimension: forecasting longitude and forecasting latitude respectively. Again, the stock index is effected by various factors, however as forecasting stock index we may assume that it is only a function of time. In order to improve the effect of one dimensional method, we can change finding the solution suitable for whole space or a domain, into finding the solution suitable for one point only with single point method. As applying one dimensional method, the fractal model is very effective.
Category: Functions and Analysis

[172] viXra:1608.0155 [pdf] submitted on 2016-08-16 03:44:17

Exact Solutions for Sine-Gordon Equations and F-Expansion Method

Authors: L. A. N. de Paula
Comments: 5 Pages.

A large number of methods have been proposed for solving nonlinear differential equations. The Jacobi elliptic function method and the f-expansion methods are generalizations from a few of them. These methods produce not only single-solitons but also multi-soliton solutions. In this work we applied the f -expansion method and found novel solutions besides those known for three main equations of the kind sine-Gordon: Triple Sine-Gordon (TSG), Double Sine-Gordon (DSG) and Simple Sine-Gordon (SSG).
Category: Functions and Analysis

[171] viXra:1608.0065 [pdf] submitted on 2016-08-05 21:34:41

Carotid-Kundalini Functions and Chaos

Authors: Sai Venkatesh Balasubramanian
Comments: 4 Pages.

This article explores a case of signal based chaos generation, using the Carotid-Kundalini function, shown in literature to possess fractal artifacts. Specifically, we set the input to a two tone signal, with the frequency ratio between the sinusoids acting as the control parameter. We explore the iterative map using the time derivatives, and upon plotting the bifurcation plot, observe the chaotic nature of the generated signal. Phase portraits are plotted for different orders, and presence of rich patterns are observed. True to the nonlinear nature, the frequency spectrum shows a horde of new frequency components generated at the output. Lyapunov Exponents also quantitatively confirm the presence of generated chaos in the Carotid-Kundalini signal.
Category: Functions and Analysis

[170] viXra:1606.0344 [pdf] submitted on 2016-06-30 08:34:29

Note on Uniqueness Solutions of Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 2 Pages.

Remembering the need of impose the boundary condition u(x,t)=0 at infinity to ensure uniqueness solutions to the Navier-Stokes equations.
Category: Functions and Analysis

[169] viXra:1606.0324 [pdf] submitted on 2016-06-28 16:56:02

The Theory of $n$-scales

Authors: Furkan Semih Dundar
Comments: 5 Pages.

We give a theory of $n$-scale previously called as $n$ dimensional time scale. In previous approaches to the theory of time scales, multi dimensional scales were taken as product space of two time scales \cite{bohner2005multiple,bohner2010surface}. Here we define an $n$-scale as an arbitrary closed subset of $\mathbb R^n$. Modified forward and backward jump operators, $\Delta$-derivatives and multiple integrals on $n$-scales are defined.
Category: Functions and Analysis

[168] viXra:1606.0180 [pdf] submitted on 2016-06-17 22:42:03

1. Universal Relative Metric That Generates A Field Super-Set To The Fields Generated By Some Number Of Distinct Relative Metrics 2. Universal Function Generation (FAA)

Authors: Ramesh Chandra Bagadi
Comments: 18 Pages.

In this research investigation, the author has presented a theory of ‘Universal Relative Metric That Generates A Field Super-Set To The Fields Generated By Various Distinct Relative Metrics’.
Category: Functions and Analysis

[167] viXra:1606.0141 [pdf] submitted on 2016-06-14 08:42:21

Some Definite Integrals Over a Power Multiplied by Four Modified Bessel Functions

Authors: Richard J. Mathar
Comments: 16 Pages.

The definite integrals int_0^oo x^j I_0^s(x) I_1^t(x) K_0^u(x) K_1^v(x) dx are considered for non-negative integer j and four integer exponents s+t+u+v=4, where I and K are Modified Bessel Functions. There are essentially 15 types of the 4-fold product of which 10 are discussed here. Partial integration of each of these types leads to correlations between these integrals. The main result are (forward) recurrences of the integrals with respect to the exponent j.
Category: Functions and Analysis

[166] viXra:1605.0290 [pdf] submitted on 2016-05-28 22:52:24

A Formalized Implied Integral

Authors: Eric Stucky
Comments: 6 Pages.

In this document, we define a fully formalized notion of the ``Implied Integral'' which works for a broad variety of symbolic expressions. We show that it is equal to the ordinary integral up to a generalized constant term, and we show that this generalized constant is in some sense optimal.
Category: Functions and Analysis

[165] viXra:1605.0236 [pdf] submitted on 2016-05-22 15:47:43

Two Theorems on Solutions in Eulerian Description

Authors: Valdir Monteiro dos Santos Godoi
Comments: 8 Pages.

We present two proofs of theorems needed to the major work we are doing on existence and breakdown solutions of the Navier-Stokes equations for incompressible case in n = 3 spatial dimensions.
Category: Functions and Analysis

[164] viXra:1604.0376 [pdf] submitted on 2016-04-29 06:12:02

Abstract Theorems on Exchange of Limits and Preservation of (Semi)continuity of Functions and Measures in the Filter Convergence Setting

Authors: Antonio Boccuto, Xenofon Dimitriou
Comments: 13 Pages.

We give necessary and sufficient conditions for exchange of limits of double-indexed families, taking values in sets endowed with an abstract structure of convergence, and for preservation of continuity or semicontinuity of the limit family, with respect to filter convergence. As consequences, we give some filter limit theorems and some characterization of continuity and semicontinuity of the limit of a pointwise convergent family of set functions.
Category: Functions and Analysis

[163] viXra:1604.0369 [pdf] submitted on 2016-04-28 08:05:07

Homogeneous Reduction of Order Homogeneous and Inhomogeneous Second Order Linear Ordinary Differential Equations Solution in One Process

Authors: Claude Michael Cassano
Comments: 4 Pages.

The Homogeneous , Reduction of Order Homogeneous , and Inhomogeneous Second Order Linear Ordinary Differential Equations Solution may be established in one analytical proof-process.
Category: Functions and Analysis

[162] viXra:1604.0244 [pdf] submitted on 2016-04-15 22:16:18

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 4 Pages. In english.

We find an exact solution for the system of Navier-Stokes equations, following the description of the Lagrangian movement of an element of fluid, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[161] viXra:1604.0235 [pdf] submitted on 2016-04-15 04:23:52

On Some Series Related to Möbius Function and Lambert W-Function

Authors: Danil Krotkov
Comments: 12 Pages.

We derive some new formulas, connecting some series with Möbius function with Sine Integral and Cosine Integral functions, give the formal proof for full version of Stirling's formula; investigate the values of new Dirichlet series function at natural numbers >1 and it's behavior at the pole s=1, connecting it with elementary constants.
Category: Functions and Analysis

[160] viXra:1604.0204 [pdf] submitted on 2016-04-13 02:17:14

On Zeros of Some Entire Functions

Authors: Bing He
Comments: 16 Pages.

Let \begin{equation*} A_{q}^{(\alpha)}(a;z)=\sum_{k=0}^{\infty}\frac{(a;q)_{k}q^{\alpha k^2} z^k}{(q;q)_{k}}, \end{equation*} where $\alpha >0,~0<q<1.$ In a paper of Ruiming Zhang, he asked under what conditions the zeros of the entire function $A_{q}^{(\alpha)}(a;z)$ are all real and established some results on the zeros of $A_{q}^{(\alpha)}(a;z)$ which present a partial answer to that question. In the present paper, we will set up some results on certain entire functions which includes that $A_{q}^{(\alpha)}(q^l;z),~l\geq 2$ has only infinitely many negative zeros that gives a partial answer to Zhang's question. In addition, we establish some results on zeros of certain entire functions involving the Rogers-Szeg\H{o} polynomials and the Stieltjes-Wigert polynomials.
Category: Functions and Analysis

[159] viXra:1604.0107 [pdf] submitted on 2016-04-05 12:31:45

A Naive Solution for Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 14 Pages.

We seek a solution attempt for the system of Navier-Stokes equations for spatial dimensions n = 2 and n = 3. This solution has the most objective to provide a better numerical evaluation of the exact analytical solution, thus contributing to the solution not only from a theoretical mathematical problem, but from a practical problem worldwide.
Category: Functions and Analysis

[158] viXra:1604.0001 [pdf] submitted on 2016-04-01 02:42:01

General One-Sided Clifford Fourier Transform, and Convolution Products in the Spatial and Frequency Domains

Authors: Eckhard Hitzer
Comments: 16 Pages. 1 figure

In this paper we use the general steerable one-sided Clifford Fourier transform (CFT), and relate the classical convolution of Clifford algebra-valued signals over $\R^{p,q}$ with the (equally steerable) Mustard convolution. A Mustard convolution can be expressed in the spectral domain as the point wise product of the CFTs of the factor functions. In full generality do we express the classical convolution of Clifford algebra signals in terms of a linear combination of Mustard convolutions, and vice versa the Mustard convolution of Clifford algebra signals in terms of a linear combination of classical convolutions.
Category: Functions and Analysis

[157] viXra:1603.0413 [pdf] submitted on 2016-03-30 21:39:45

Ramanujan Theta Functions: The Route to Chaos

Authors: Sai Venkatesh Balasubramanian
Comments: 12 Pages.

Motivated by the call for a more flexible, easy-to-tune means of generating chaos, the present work elaborates upon the development of the Ramanujan Theta Function as a source of chaos. By setting the variables of this function to sinusoids of competing frequencies the chaotic output signal is generated, with the ratio of the input frequencies serving as control parameter. The characteristics of such chaos generated are studied using the iterative map and bifurcation plots, and the presence of chaos is ascertained using Lyapunov Exponents and Kolmogorov Entropy. Following this, the route from order to chaos of the proposed system are studied using three techniques – phase portrait, Fourier Spectra and wavelet analysis. In the phase portraits, it is seen that for non-chaotic regimes, phase portraits are orderly with definite number of loops, whereas for chaotic regimes, trajectories are spread all over the phase space, suggesting ergodicity and giving the phase portrait a rich, ornamental look. The Fourier spectra highlighted the discrete frequency components in non-chaotic regimes, with well formed sidebands, whereas in chaotic regimes, a lot of new frequency components are seen, giving the spectral profile a ‘grassy’ appearance. Finally, a hyperbolic wavelet, termed the Solitary Wavelet seen to possess vanishing higher order moments with a negative logarithmic slope, is used as the basis to perform wavelet analysis. The results reveal that the rhythmic periodicity observed in large scale values for non-chaotic regimes is significantly absent for chaotic regimes, with variations in the trends of new pulses emerging alongside the main pulse train. It is seen that the wavelet analyses combine the best features of phase portrait analyses (ergodicity detected by peak sporadicity and pulse variance), and Fourier Spectral analyses (new frequency component generation seen by observing dominance at various scales, and new peaks at lower scales corresponding to new pulses), while revealing additional features such as fractal nature, not seen in the other two analysis tools. In summary, the present article ushers in a novel perspective pertaining to signal oriented chaos, calling for a change in the way bifurcation plots and iterative maps are perceived, as also the means to generate and control such chaos. It is hoped that the wavelet analysis, highlighting both spectral and temporal aspects of the signal, emerges as a reliable and assertive qualitative means to identify, detect and to an extent, characterize the nature of chaos, either stand-alone, or in conjunction with tools such as phase portraits. Progress in such an area will eventually drive chaos analyses away from Lyapunov Exponents, which are most useful in system based chaos where initial conditions are well known, and are at best computed with approximations from output chaotic signals, using methods such as the Rosenstein Algorithm.
Category: Functions and Analysis

[156] viXra:1603.0250 [pdf] submitted on 2016-03-17 10:41:39

Reviewing the 15th Problem of Smale: Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 19 Pages.

A most deep solution to the fifteent problem of Smale, the Navier-Stokes equations in three spatial dimentions. The answer is negative.
Category: Functions and Analysis

[155] viXra:1603.0050 [pdf] submitted on 2016-03-04 05:27:31

Três Exemplos de Energia Ilimitada para t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: 26 Pages.

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0 (x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. Three examples are given.
Category: Functions and Analysis

[154] viXra:1602.0246 [pdf] submitted on 2016-02-20 06:15:20

Three Examples of Unbounded Energy for t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: Article in construction. Number of pages with total prepared for 2 idioms.

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0(x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[153] viXra:1602.0235 [pdf] submitted on 2016-02-19 06:00:15

Performances Piecewise Defined Functions in Analytic Form, Prime-Counting Function

Authors: Oleh Kyrhan
Comments: 6 Pages.

The article discusses the representation of discrete functions defined in an analytic form without the use of approximations, namely the Heaviside function, identity function, the Dirac delta function and the prime-counting function.
Category: Functions and Analysis

[152] viXra:1602.0044 [pdf] submitted on 2016-02-04 07:36:02

General Two-Sided Clifford Fourier Transform, Convolution and Mustard Convolution

Authors: Eckhard Hitzer
Comments: 19 Pages. Submitted to Adv. in Appl. Cliff. Algs., 1 figure.

In this paper we use the general steerable two-sided Clifford Fourier transform (CFT), and relate the classical convolution of Clifford algebra-valued signals over $\R^{p,q}$ with the (equally steerable) Mustard convolution. A Mustard convolution can be expressed in the spectral domain as the point wise product of the CFTs of the factor functions. In full generality do we express the classical convolution of Clifford algebra signals in terms of finite linear combinations of Mustard convolutions, and vice versa the Mustard convolution of Clifford algebra signals in terms of finite linear combinations of classical convolutions.
Category: Functions and Analysis

[151] viXra:1601.0289 [pdf] submitted on 2016-01-26 11:04:20

Korovkin-Type Theorems for Abstract Modular Convergence

Authors: Antonio Boccuto, Xenofon Dimitriou
Comments: 7 Pages.

We give some Korovkin-type theorems on convergence and estimates of rates of approximations for nets of functions, satisfying suitable axioms, whose particular cases are filter/ideal convergence, almost convergence and triangular A-statistical convergence, where A is a non-negative summability method. Furthermore, we give some comparison result between different types of convergence and applications to integral type and discrete operators.
Category: Functions and Analysis

[150] viXra:1601.0283 [pdf] submitted on 2016-01-26 05:07:27

Space-Time Fourier Transform, Convolution and Mustard Convolution

Authors: Eckhard Hitzer
Comments: 15 Pages. Submitted to S. Bernstein and P. Cerejeiras (eds), Complex Variables and Elliptic Equations (Taylor & Francis), Special Issue entitled “Clifford analysis – theory and applications”, 26 Jan. 2016.

In this paper we use the steerable space-time Fourier transform (SFT), and relate the classical convolution of the algebra for space-time $Cl(3,1)$-valued signals over the space-time vector space $\R^{3,1}$, with the (equally steerable) Mustard convolution. A Mustard convolution can be expressed in the spectral domain as the point wise product of the SFTs of the factor functions. In full generality do we express the classical convolution of space-time signals in terms of finite linear combinations of Mustard convolutions, and vice versa the Mustard convolution of space-time signals in terms of finite linear combinations of classical convolutions.
Category: Functions and Analysis

[149] viXra:1601.0189 [pdf] submitted on 2016-01-18 00:35:19

The Inverse Derivative —— the New Algorithm of the Derivative

Authors: GuagSan Yu
Comments: 8 Pages.

The Newton's second law and third law has proven to be wrong, his mistake is the derivative operation the limitation resulting. Therefore new derivative the computation method desiderate the creation, this is the Inverse Derivative algorithm. The Inverse Derivative is a kind of extension of the derivative computation, it is based on the derivative calculated generated, using most of the derivative formulas to converted adjusted. In the field of physics and mechanical engineering, Inverse Derivative may be a large number of employed, to replace original derivative computation method. Will produce the enormous and profound influence.
Category: Functions and Analysis

[148] viXra:1601.0165 [pdf] submitted on 2016-01-15 05:15:47

General Two-Sided Quaternion Fourier Transform, Convolution and Mustard Convolution

Authors: Eckhard Hitzer
Comments: 14 Pages. Submitted to special issue of Adv. in Appl. Cliff. Algs., 1 color figure.

In this paper we use the general two-sided quaternion Fourier transform (QFT), and relate the classical convolution of quaternion-valued signals over $\R^2$ with the Mustard convolution. A Mustard convolution can be expressed in the spectral domain as the point wise product of the QFTs of the factor functions. In full generality do we express the classical convolution of quaternion signals in terms of finite linear combinations of Mustard convolutions, and vice versa the Mustard convolution of quaternion signals in terms of finite linear combinations of classical convolutions.
Category: Functions and Analysis

[147] viXra:1601.0129 [pdf] submitted on 2016-01-12 15:46:52

The Mistakes by Cauchy

Authors: Wu Sheng-Ping
Comments: 1 Page.

I find the mistake in Cauchy's theorem of Complex variables.
Category: Functions and Analysis

[146] viXra:1601.0039 [pdf] submitted on 2016-01-05 22:52:20

(Chinese)THE Inverse Derivative

Authors: GuagSan Yu
Comments: 6 Pages. This paper is Chinese

The Newton second law and the law of third have beened wrong by the proof, his mistake be caused by the localization of the derivative. Therefore new derivative the computation method desiderate the creation, this is the Inverse Derivative computation method. The inverse derivative is a kind of extension of the derivative computation, it creation been according to derivative the computation, the adoption is through regulatory and conversion the computation formula of the mostly derivative. In the physics and mechanics engineering realm, the Inverse Derivative be may adopted in largeness, to replace original derivative computation method. Will produce the enormous and profound influence.
Category: Functions and Analysis

[145] viXra:1512.0253 [pdf] submitted on 2015-12-07 03:05:14

Differential Equation for 2nd-Order Curves

Authors: Viktor Strohm
Comments: 5 Pages.

In this article we consider a differential equation for 2nd-order curve of the motion of a parametric pendulum in zero gravity.
Category: Functions and Analysis

[144] viXra:1511.0302 [pdf] submitted on 2015-11-30 20:55:26

The Quaternion Domain Fourier Transform and its Properties

Authors: Eckhard Hitzer
Comments: 16 Pages. Published in Advances in Applied Clifford Algebras, pp. 1-16, Online First: 02 Nov. 2015, DOI: 10.1007/s00006-015-0620-3..

So far quaternion Fourier transforms have been mainly defined over $\mathbb{R}^2$ as signal domain space. But it seems natural to define a quaternion Fourier transform for quaternion valued signals over quaternion domains. This quaternion domain Fourier transform (QDFT) transforms quaternion valued signals (for example electromagnetic scalarvector potentials, color data, space-time data, etc.) defined over a quaternion domain (space-time or other 4D domains) from a quaternion position space to a quaternion frequency space. The QDFT uses the full potential provided by hypercomplex algebra in higher dimensions and may moreover be useful for solving quaternion partial differential equations or functional equations, and in crystallographic texture analysis. We define the QDFT and analyze its main properties, including quaternion dilation, modulation and shift properties, Plancherel and Parseval identities, covariance under orthogonal transformations, transformations of coordinate polynomials and differential operator polynomials, transformations of derivative and Dirac derivative operators, as well as signal width related to band width uncertainty relationships.
Category: Functions and Analysis

[143] viXra:1511.0247 [pdf] submitted on 2015-11-25 11:42:54

General Method for Summing Divergent Series Using Mathematica and a Comparison to Other Summation Methods

Authors: Sinisa Bubonja
Comments: 23 Pages.

We are interested in finding sums of some divergent series using the general method for summing divergent series discovered in our previous work and symbolic mathematical computation program Mathematica. We make a comparison to other five summation methods implemented in Mathematica and show that our method is the stronger method than methods of Abel, Borel, Cesaro, Dirichlet and Euler.
Category: Functions and Analysis

[142] viXra:1511.0246 [pdf] submitted on 2015-11-25 07:46:15

ACourse of Numerical Analysis and Applied Mathematics

Authors: Abdelmajid Ben Hadj Salem
Comments: 93 Pages. In French.

It is a course of numerical analysis and applied mathematics for the students of the geomatic and topography option of the ESAT School, Tunis, Tunisia.
Category: Functions and Analysis

[141] viXra:1511.0077 [pdf] submitted on 2015-11-10 07:45:51

Abscissa and Weights for Gaussian Quadratures of Modified Bessel Functions Integrated from Zero to Infinity

Authors: Richard J. Mathar
Comments: Few text; the majority of pages show pairs of abscissae and weights.

We tabulate the abscissae and associated weights for numerical integration of integrals with kernels which contain a power of x and Modified Bessel Functions K_nu(x). The first family of integrals contains the factor x^m K_nu(x) with integer indices nu=0 or 1 and integer powers nu <= m <= 3. The second family of integrals contains the factor x^m K_nu(x)K_nu'(x) with integer indices 0 <= nu, nu' <= 1 and integer powers nu+nu' <= m <= 3.
Category: Functions and Analysis

[140] viXra:1511.0071 [pdf] submitted on 2015-11-09 06:26:54

A Critique to Otelbaev Solution for the Sixth Millenium Problem (Navier-Stokes Equation)

Authors: Valdir Monteiro dos Santos Godoi
Comments: 2 Pages. In portuguese.

A critique to Otelbaev solution for the sixth millenium problem (Navier-Stokes equation). Begins with a dialogue with the teacher Odilon in the IME-USP library.
Category: Functions and Analysis

[139] viXra:1510.0506 [pdf] submitted on 2015-10-30 10:22:42

A Theoretical Critique of Theory. Pt. 1, Modus Ponens and Cauchy Toplogies

Authors: Alex Patterson
Comments: 42 Pages. Special Thanks to Julian C. Boyd, December 25, 1931 – April 5, 2005

Abstract: In ideal circumstances, we know exactly what to do. But there are no ideal circumstances; but then we are confusing and conflating two things if you look: When we speak of ideal circumstances, we are philosophers and thinking of our version of a Platonic ideal, not our value ideals or our ideal values [a common mistake that does not justify nominalism – it is the nominalist’s backdoor malware into the reductive Platonism], such as freedom of speech, right bear arms, habeas corpus, each one of us has those which are most important to us, sometimes many at the same time. These are not however social value-propositions. They derive of natural law in the Constitution. However, certain Platonic ideal circumstances as to our individually important value ideals can be created in real life, to the degree that we are able to invent. That is why we have Critique. It takes notice of the differences and the possibilities offered by the differences, which would be less without noticing the differences. However, in in that sense where ideal circumstances can be created [actually, are present], we have created them in our everyday lives, they are our individual lives, exist within the network of constitutive grounds for law and institutions. In strict terms of modality, these value-propositions become axiomatic with the given system of our everyday lives that. And so, with a leap of faith to living our everyday lives practically, theoretical matters, axiomatically classical matters, classical axiomatic matters, a serious mind would see that you that in the debates in physics over cosmology, we literally have geodesics flying out through time from centrifugal non-global hyperbolic Cauchy topology like Frisbees, each one of which you can play an infinite number of games on. You don’t need or have a CTC, so there is no causal blockade in the hyperbolic Cauchy topology of strong cause and effect. Modus ponens as explained above is the only mechanical mechanism is the mode for cause and effect that man has, and its antecedence-precedence minimalism yet strong presence is enough; and it is minimum. With modus ponens what it has been since remote antiquities, to say anything otherwise would be to ask help from God to unravel all of the physics up until today’s counterarguments in favor of a vt time-lapse based arithmetic time line with counterintuitive information transfer and strangely in relation to the later, if that goes badly, the need for constructivism’s interference in mathematics, resulting in the need to use MP to take the physics apart. The solution itself takes the piled data apart. We can’t read God’s mind. But Gödel left us this. Otherwise we need God’s help, and I have written the PRF.POSTV [proof-positive] against that possibility. All that we retain from that would be the nominalist’s eased conventional respect for Occam in expostulation and discussions of formal matters such as sets. In this [theoretical] critique of theory, new terms and tools are introduced for the Gödel material and literature. It would be precisely named, “Critique of The Theory.” Not Gödel’s theory, if he had one, but ‘The Theory’ as an object. It’s revealing that no other concept can be spoken of in that way. Picture trees in a forest, and rocks displaced by gravity and falling through forest, hitting one tree, then another, until they stop. Hubble shows to astronomers which super-structures are found, how big, and how far back in time. It is consistent with Mach’s principle if you rotate yourself before you look into the forest at 90 degrees and find a way of suspending yourself and turnig. Asymptotes are used within vertical and horizontal graphs to justify a future that need not be seen as a future in the sense of grammatical future-tense [which is a dubious tense in “philosophical grammar”] but as a potential part in such systems themselves that we deal with with respect to incompleteness. The thesis is that we can approach incompleteness by using [theoretical] reasoning and available tools that are allowed in theoretical reasoning and in reasoning as we think of it in reasoning through situations, and in the sense of pure reasoning itself; and, in order to critique the very meaning of incompleteness itself. As well, as the theoretical reasoning possible inside the tools themselves, should they have domains. We will not always a domain for ourselves. We will not always be here; we will die, and epochal turns in history amounting to new antiquities will occur. One of the most famous axioms of this type was invented by Vico, an axiom he discovered by thinking things through and studying. In the long course that rumor has run from the beginning of the world it has been the perennial source of all the exaggerated opinions which have hitherto been held concerning remote antiquities unknown to us, by virtue of that property of the human mind noted by Tacitus in his Life of Agricola, where he says that everything unknown is taken for something great (omne ignotum fro magnifico est). – Gianbattista Vico, La Scienze nouva, The New Science
Category: Functions and Analysis

[138] viXra:1510.0494 [pdf] submitted on 2015-10-28 20:16:06

Nonlinear Dynamics and Chaos in Third Order Mock Theta Functions

Authors: Sai Venkatesh Balasubramanian
Comments: 8 Pages.

The present work purports to the generation of a signal based chaos based on Ramanujan’s Mock Theta Functions. Specifically, the variable in these functions is viewed as an additively coupled sum of sinusoidal signals, with competing frequencies. Thus, by adapting the seven third order mock theta functions into signals, the derivatives are computed and used to form the corresponding iterative maps, which are studied using phase portraits. It is seen that the phase portraits of three of the seven forms exhibit rich, ornamental patterns, characteristic of chaos. Using these, the bifurcation diagrams are plotted, and the chaotic behavior is quantitatively characterized using Lyapunov Exponent and Kolmogorov Entropy. It is seen that the nature of chaos in the mock theta form based signals indeed depend on the frequency ratio of the driving signals, thus pertaining to a case of signal based chaos, which has the key advantage of easy tunability, which forms the novelty of the present work.
Category: Functions and Analysis

[137] viXra:1510.0492 [pdf] submitted on 2015-10-28 20:18:43

Investigation of Nonlinear Dynamics and Chaos in Driven Systems Derived from Einstein Functions

Authors: Sai Venkatesh Balasubramanian
Comments: 5 Pages.

The present work pertains to the formulation and generation of signal based frequency controlled chaos based on Einstein Functions. Specifically, the variable in the four Einstein functions is taken as an additively coupled sum of sinusoids with competing frequencies. By adapting the four Einstein functions into signals, the time derivatives are computed and used to form the iterative maps and phase portraits. It is seen that the four phase portraits display to varying degrees, ornamental patterns, characteristic of quasiperiodicity and chaos. Using these, bifurcation diagrams are plotted, and the chaotic signal is quantitatively characterized using largest Lyapunov Exponents. It is seen that the nature of chaos in the generated signals depend on the frequency ratio of the driving signals, thus pertaining to a case of signal based chaos, which has the key advantage of easy tunability, forming the novelty of the present work.
Category: Functions and Analysis

[136] viXra:1510.0447 [pdf] submitted on 2015-10-28 09:39:32

Matrix Theorems and Interchange for Lattice Group-Valued Series in the Filter Convergence Setting

Authors: Antonio Boccuto, Xenofon Dimitriou
Comments: 4 Pages.

We investigate some properties of unconditional convergence of series taking values in lattice groups. We give some matrix and Schur-type theorems in the filter convergence context for lattice group-valued measures, and deduce an interchange theorem for series.
Category: Functions and Analysis

[135] viXra:1510.0426 [pdf] submitted on 2015-10-28 02:22:32

Even More Ordinary Differential Equations Easy Way

Authors: Claude Michael Cassano
Comments: 5 Pages.

Several theorems are established to ease exact solution of homogeneous linear ordinary differential equations.
Category: Functions and Analysis

[134] viXra:1510.0398 [pdf] submitted on 2015-10-26 08:34:31

Generating Chaos from Love - Mathematically

Authors: Sai Venkatesh Balasubramanian
Comments: 6 Pages.

The present paper pertains to the formulation and generation of a signal based frequency controlled chaos based on the Heart Curves, an assortment of parametric functions so named due to their ability to generate cardoid (heart-shaped) curves. Specifically, the variable in two parametric functions is taken as an additively coupled sum of sinusoids with competing frequencies. By adapting the x and y components of these functions into signals, the time derivatives are computed and used to form the iterative maps and phase portraits. It is seen that the four phase portraits display to varying degrees, ornamental patterns, characteristic of quasiperiodicity and chaos. Using these, bifurcation diagrams are plotted in order to investigate the chaotic behavior. It is seen that the nature of chaos in the generated signals depend on the frequency ratio of the driving signals, thus pertaining to a case of signal based chaos, which has the key advantage of easy tunability, forming the novelty of the present work.
Category: Functions and Analysis

[133] viXra:1510.0386 [pdf] submitted on 2015-10-25 08:11:52

Generation of Frequency Controlled Chaotic Signals using Ramanujan Theta Function

Authors: Sai Venkatesh Balasubramanian
Comments: 6 Pages.

The present work purports to a signal based generation of chaos, thereby offering a radically innovative solution to the issues of tunability caused in conventional system based chaos generation circuits. Specifically, the Ramanujan Theta Function is seen to represent the output signal of a coupled nonlinear system with two driving signals. Using this concept, the iterative map of the Ramanujan Theta Function is developed using the frequency ratio of driving signals as the control parameter, and the ratio dependent dynamics are studied using the bifurcation plot. The proposed system is implemented in hardware using FPGA and the presence of chaos is validated qualitatively using phase portraits and quantitatively using Lyapunov Exponents, whose trend indeed agree with the one observed in the bifurcation plot. The innovative perspective of signal based chaos proposed using the Ramanujan Theta Function enables easy tunability in chaotic generation systems and this forms the novelty of the present work.
Category: Functions and Analysis

[132] viXra:1510.0364 [pdf] submitted on 2015-10-23 12:56:09

Huge Class of Infinite Series with Closed-Form Expressions

Authors: Danil Krotkov
Comments: 4 Pages.

Generalized Ramanujan identity
Category: Functions and Analysis

[131] viXra:1510.0361 [pdf] submitted on 2015-10-23 09:16:29

Nonlinear Dynamics in Signals Derived from Bessel Functions

Authors: Sai Venkatesh Balasubramanian
Comments: 8 Pages.

The present work purports to the formulation and characterization of signal based chaos based on Bessel Functions. Specifically, the variable in these functions is viewed as an additively coupled sum of sinusoidal signals, with competing frequencies. By adapting the regular and modified Bessel Functions of the first and second kinds into signals, the derivatives are computed and used to form the corresponding iterative maps, which are studied using phase portraits. It is seen that the phase portraits of the regular and modified Bessel functions of the first kind exhibit rich, ornamental patterns, characteristic of quasiperiodicity and chaos. Using these, the bifurcation diagrams are plotted, and the chaotic behavior is quantitatively characterized using largest Lyapunov Exponents. It is seen that the nature of chaos in the generated signals indeed depend on the frequency ratio of the driving signals, thus pertaining to a case of signal based chaos, which has the key advantage of easy tunability, which forms the novelty of the present work.
Category: Functions and Analysis

[130] viXra:1510.0098 [pdf] submitted on 2015-10-12 08:22:11

Generalized Sophomore's Dream Identity

Authors: Danil Krotkov
Comments: Pages.

Generalized Identity of Johann Bernoulli
Category: Functions and Analysis

[129] viXra:1509.0286 [pdf] submitted on 2015-09-30 00:40:38

Numerical Solution of Linear, Homogeneous Differential Equation Systems via Padé Approximation

Authors: Kenneth C. Johnson
Comments: 5 Pages. See also http://www.mathworks.com/matlabcentral/fileexchange/50413-generalized-matrix-exponential

This paper reports work-in-progress on the solution of first-order, linear, homogeneous differential equation systems, with non-constant coefficients, by generalization of the Padé approximant method for exponential matrices.
Category: Functions and Analysis

[128] viXra:1509.0193 [pdf] submitted on 2015-09-21 05:27:01

A “Rough” Inquiry and into a Conceptual Framework: Gödelian-Bayesian Algebras and Rotational Relativity

Authors: Alex Patterson
Comments: 39 Pages. Special thanks for Michael J. Burns, of Hacking Physics

Abstract: in ideal circumstances, we know exactly what to do. But there are no ideal circumstances. That is why we have Critique. The object of critique matters not. However, this paper is also very concerned not only with critique as such but with a possible intersection, that has arisen out of such critique, of a heretofore un-combined areas of mathematical induction, Gödelian Relativity, and their Algebras within Bayesian Networks. It is very rough attempt, but uses all the right tools, should such an Intersection be theoretically viable in the short term, at least. Further steps are made into Ethics, which the author believes to be the basis of any elegance for that matter, of any excellent piece of intellectual effort. This paper uses its own peculiar lettering system for each paragraph. I don’t like it: But the way I write it is the only way I can figure to impose some kind of order for the content. Seemingly arcane references will be made to philosophers such as Vico and Kant, to Heine and Goethe, to Wittgenstein and B.F. Skinner, J.L. Austin, Turing, Thomas Paine, G.H. von Wright, Marx, the “Availability Heuristic,” Quantum Logic, More Classical Systems of Axiomatic Problems, Epistemology, etc., et. al. Towards the end a Narrative will be given that attempts to address some concerns of the present world in its ethical, moral, and political makeup. There will be no cut-off at that point, but the change will be clearly visible, it is hoped that there will be a “fade to gray" effect. The Reader’s forbearance and endurance to “strange thoughts”(but which are informed by the author’s education) is solicited as the paper proceeds: Even a crank might not be a crank, as a liar may not be a liar. Such are our weak paradoxes. Therefore, this: 1.New terms and tools are introduced for quantification that creates a more synthetic (logical, reasonable, coherent) intervention and inter-weaving into these (those) now classical problems of the assumptions and the successes in the Gödel material and literature. 2.Asymptotes are used within vertical and horizontal graphs to justify a future that need not be seen as a future in the sense of grammatical future-tense (it is considered by the best philosophical grammarians to be a tense that doesn’t exist), but as a potential part in such systems themselves that we deal with respect to incompleteness. 3.The thesis is that we can approach incompleteness by using theoretical reasoning and available tools that are allowed in theoretical reasoning to critique the very theory of incompleteness itself. That is the essential Abstract Thesis. 4.It will be seen that a real attempt is attempted. It is quite a ride. I’ve looked at everything I can think of so far. In doing Gödel you can’t tell a hypothesis from a position. So it is necessary to be very analytical, use Occam’s razor wherever you can but still brave the undesired feat of blunting the blade. This is not Quine, and there is no Neurath’s Figure to resort to as Quine does, and in his area, must do, much to his discredit, as great as he may be. This critique (work, paper) works from Gödel’s incompleteness to Gödel relativity. It does so in with the help of formal logic and inductive thinking, and a lot of hard analysis and questioning of various facts, the interrogation of assumptions, so that the critique can end up where it belongs: in the ethical domain of inquiry, not an easy category of thought to express, but which will be further versioned in subsequent editions, or entirely new works.
Category: Functions and Analysis

[127] viXra:1508.0214 [pdf] submitted on 2015-08-27 06:58:21

An Under-Study of Both in Terms of the Other – Wittgenstein’s TLP Proposition 3.333 & the Lorentz Gamma-Factor γ

Authors: Alex Patterson
Comments: 5 Pages. Special thanks to many

Abstract This short paper is a simple attempt to see whether the Lorentz Gamma Factor, when restrained by Wittgenstein’s TLP (Tractatus Logico Philosophicus) 3.333 proposition on a Function containing a function which he supposes rather imperatively that it excises Russell’s Paradox in Principia Mathematica, may be ‘a rationalist/rational under-study’ on that very of excisement, and vice versa. Further, potentially moot but nonetheless by Vico’s Dictum attention is given to what the consequences of finalizing the Under-Study might entail, be consequent on, pertain to, maybe even elucidate, etc. Such under-studies are abundant in the classics, for example Vico to Petrarch. That’s sufficient and needs more of in the author’s view.
Category: Functions and Analysis

[126] viXra:1508.0204 [pdf] submitted on 2015-08-25 14:15:46

New Finite and Infinite Summation Identities Involving the Generalized Harmonic Numbers

Authors: Kunle Adegoke, Olawanle Layeni
Comments: 22 Pages.

We state and prove a general summation identity. The identity is then applied to derive various summation formulas involving the generalized harmonic numbers and related quantities. Interesting results, mostly new, are obtained for both finite and infinite sums. The high points of this paper are perhaps the discovery of several previously unknown infinite summation results involving {\em non-linear} generalized harmonic number terms and the derivation of interesting alternating summation formulas involving these numbers.
Category: Functions and Analysis

[125] viXra:1508.0152 [pdf] submitted on 2015-08-19 11:23:23

Breakdown of Navier-Stokes Solutions – Bounded Energy

Authors: Valdir Monteiro dos Santos Godoi
Comments: 4 Pages. example (13) is wrong. very sorry. i´m sad. will be corrected.

We have proved that there are initial velocities u^0 (x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[124] viXra:1508.0096 [pdf] submitted on 2015-08-13 08:16:42

An Exact Radial Smooth Type a Solution to the Navier Stokes Equation

Authors: Han Geurdes
Comments: 5 Pages.

In this paper it is demonstrated that the Navier Stokes equation has a smooth type A nontrivial exact solution combining two radial solutions inside and outside the unit sphere.b
Category: Functions and Analysis

[123] viXra:1508.0083 [pdf] submitted on 2015-08-11 10:24:30

Approximation of Exp(x) Deduced from the Implicit Euler Numerical Solution of First Order Linear Differential Equations

Authors: Carlos Armando De Castro
Comments: 7 pages, one column, 8 figures

In this paper it is shown a simple approximation of the function exp(x) for positive values of x, deduced from the implicit Euler numerical solution of first order lineal differential equations (ODE). The results show that the approximation has an error of less than 10% for exp(x) when x < 0.35 and for exp(-x) when x < 0.5, which is acceptable for many engineering applications, and helps facilitate the analysis of some systems without the use of computers. Keywords: approximation, Euler implicit method, exponential function, first order ODE.
Category: Functions and Analysis

[122] viXra:1507.0225 [pdf] submitted on 2015-07-31 07:39:39

Brief Comment on the Euler and Navier-Stokes Equations in 2-D

Authors: Valdir Monteiro dos Santos Godoi
Comments: 1 Page.

The qualitative equality between n = 2 and n = 3 spatial dimensions.
Category: Functions and Analysis

[121] viXra:1507.0063 [pdf] submitted on 2015-07-09 14:51:16

Meta Functional Optimization

Authors: Sidharth Ghoshal
Comments: 3 Pages.

A technique for optimizing a more general class of linear operator expressions than those covered by the Euler Lagrange Equations
Category: Functions and Analysis

[120] viXra:1507.0051 [pdf] submitted on 2015-07-08 08:47:05

Generalized Sophomore's Dream Identity

Authors: Danil Krotkov
Comments: 2 Pages.

Generalized identity of Johann Bernoulli
Category: Functions and Analysis

[119] viXra:1507.0022 [pdf] submitted on 2015-07-03 12:26:31

Solving the 15th Problem of Smale: Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 2 Pages.

The solution of the fifteenth problem of Smale, the Navier-Stokes equations in three spatial dimensions.
Category: Functions and Analysis

[118] viXra:1506.0019 [pdf] submitted on 2015-06-03 16:14:12

Analysis of Generals Algorithms of Numeric Solutions of Ordinary Differential Equations of Higher Order One with Initial Conditions.

Authors: Carlos Oscar Rodríguez Leal
Comments: Language: Spanish. Number of pages: 25

In this paper several existing numerical methods of solution of ordinary differential equations of first order with initial conditions are modified , so that they can be generalized as methods of solution of ordinary differential equations of order n.
Category: Functions and Analysis

[117] viXra:1505.0083 [pdf] submitted on 2015-05-11 08:09:42

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 18 Pages. I'm working on a better proof.

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

Replacements of recent Submissions

[228] viXra:1709.0113 [pdf] replaced on 2017-09-15 04:26:30

On the Kakeya Set Conjecture

Authors: Johan Aspegren
Comments: 5 Pages.

In this article we will prove the Kakeya set conjecture. In addition we will prove that in the usual approach to the Kakeya maximal function conjecture we can assume that the tube-sets are maximal. Moreover, we will construct a tube- set were the well known L2 bound for the Kakeya maximal function is attained.
Category: Functions and Analysis

[227] viXra:1709.0113 [pdf] replaced on 2017-09-13 00:01:34

On the Kakeya Set Conjecture

Authors: Johan Aspegren
Comments: 5 Pages.

In this article we will prove the Kakeya set conjecture. In addition we will prove that in the usual approach to the Kakeya maximal function conjecture we can assume that the tube-sets are maximal. Moreover, we will construct a tube- set were the well known L2 bound for the Kakeya maximal function is attained.
Category: Functions and Analysis

[226] viXra:1709.0047 [pdf] replaced on 2017-09-19 07:48:27

Describing a Fluid Motion with 3-D Rectangular Coordinates

Authors: Valdir Monteiro dos Santos Godoi
Comments: 9 Pages.

We describe a fluid in three-dimensional motion with at most one spatial variable by rectangular coordinate, beyond time, and conclude on the breakdown of Euler and Navier-Stokes solutions and the necessity of use of vector pressure.
Category: Functions and Analysis

[225] viXra:1709.0047 [pdf] replaced on 2017-09-11 14:27:48

Describing a Fluid Motion with 3-D Rectangular Coordinates

Authors: Valdir Monteiro dos Santos Godoi
Comments: 9 Pages.

We describe a fluid in three-dimensional motion with at most one spatial variable by rectangular coordinate, beyond time, and conclude on the breakdown of Euler and Navier-Stokes solutions and the necessity of use of vector pressure.
Category: Functions and Analysis

[224] viXra:1708.0123 [pdf] replaced on 2017-09-07 19:37:37

Describing a Fluid in Three-Dimensional Circular Motion with at Most One Spatial Variable by Rectangular Coordinate

Authors: Valdir Monteiro dos Santos Godoi
Comments: 5 Pages.

Describe a fluid in three-dimensional circular motion with at most one spatial variable by rectangular coordinate, beyond time, and concludes on the breakdown of Euler and Navier-Stokes solutions and the necessity of use of vector pressure.
Category: Functions and Analysis

[223] viXra:1708.0123 [pdf] replaced on 2017-08-15 06:33:11

Describing a Fluid in Three-Dimensional Circular Motion with One Independent Variable by Rectangular Coordinate

Authors: Valdir Monteiro dos Santos Godoi
Comments: 5 Pages.

Describe a fluid in three-dimensional circular motion with one independent variable by rectangular coordinate and concludes on the breakdown of Euler and Navier-Stokes equations.
Category: Functions and Analysis

[222] viXra:1708.0123 [pdf] replaced on 2017-08-12 11:42:48

Describing a Fluid in Three-Dimensional Circular Motion with One Independent Variable by Rectangular Coordinate

Authors: Valdir Monteiro dos Santos Godoi
Comments: 4 Pages.

Describe a fluid in three-dimensional circular motion with one independent variable by rectangular coordinate and concludes on the breakdown of Euler and Navier-Stokes equations.
Category: Functions and Analysis

[221] viXra:1707.0155 [pdf] replaced on 2017-09-01 11:06:05

On a Problem in Euler and Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 31 Pages.

A study respect to a problem found in the equations of Euler and Navier-Stokes, whose adequate treatment solves a centennial problem about the solution of these equations and a most correct modeling of fluid in movement.
Category: Functions and Analysis

[220] viXra:1707.0155 [pdf] replaced on 2017-08-27 13:57:42

On a Problem in Euler and Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 31 Pages.

A study respect to a problem found in the equations of Euler and Navier-Stokes, whose adequate treatment solves a centennial problem about the solution of these equations and a most correct modeling of fluid in movement.
Category: Functions and Analysis

[219] viXra:1707.0155 [pdf] replaced on 2017-08-22 12:28:29

On a Problem in Euler and Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 30 Pages. See also viXra:1708.0123, "Describing a Fluid in Three-Dimensional Circular Motion with One Independent Variable by Rectangular Coordinate", by Valdir M.S. Godoi

A study respect to a problem found in the equations of Euler and Navier-Stokes, whose adequate treatment solves a centennial problem about the solution of these equations and a most correct modeling of fluid movement.
Category: Functions and Analysis

[218] viXra:1707.0155 [pdf] replaced on 2017-08-21 07:31:25

On a Problem in Euler and Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 30 Pages. See also viXra:1708.0123, "Describing a Fluid in Three-Dimensional Circular Motion with One Independent Variable by Rectangular Coordinate", by Valdir M.S. Godoi

A study respect to a problem found in the equations of Euler and Navier-Stokes, whose adequate treatment solves a centennial problem about the solution of these equations and a most correct modeling of fluid movement.
Category: Functions and Analysis

[217] viXra:1707.0155 [pdf] replaced on 2017-07-24 06:41:52

On a Problem in Euler and Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 28 Pages. This paper need some change. See also viXra:1708.0123, "Describing a Fluid in Three-Dimensional Circular Motion with One Independent Variable by Rectangular Coordinate", by Valdir M.S. Godoi

A study respect to a problem found in the equations of Euler and Navier-Stokes, whose adequate treatment solves a centennial problem about the solution of these equations and a most correct modeling of fluid movement.
Category: Functions and Analysis

[216] viXra:1707.0155 [pdf] replaced on 2017-07-20 09:28:40

On a Problem in Euler and Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 27 Pages.

A study respect to a problem found in the equations of Euler and Navier-Stokes, whose adequate treatment solves a centennial problem about the solution of these equations and a most correct modeling of fluid movement.
Category: Functions and Analysis

[215] viXra:1705.0410 [pdf] replaced on 2017-05-30 20:59:45

New Principles of Differential Equations Ⅰ

Authors: Hong Lai Zhu
Comments: 71 Pages.

This is the first part of the total paper. Since the theory of partial differential equations (PDEs) has been established nearly 300 years, there are many important problems have not been resolved, such as what are the general solutions of Laplace equation, acoustic wave equation, Helmholtz equation, heat conduction equation, Schrodinger equation and other important equations? How to solve the problems of definite solutions which have universal significance for these equations? What are the laws of general solution of the mth-order linear PDEs with n variables (n,m≥2)? Is there any general rule for the solution of a PDE in arbitrary orthogonal coordinate systems? Can we obtain the general solution of vector PDEs? Are there very simple methods to quickly and efficiently solve the exact solutions of nonlinear PDEs? And even general solution? Etc. These problems are all effectively solved in this paper. Substituting the results into the original equations, we have verified that they are all correct.
Category: Functions and Analysis

[214] viXra:1705.0165 [pdf] replaced on 2017-10-11 04:08:40

One Word: Navier-Stokes

Authors: Nicholas R. Wright
Comments: 6 Pages. Replaced "irrationality of square" with "geometric rate" and Cambria Math font.

We prove the Navier-Stokes equations, by means of the Metabolic Theory of Ecology and the Rule of 72. Macroecological theories are proof to the Navier-Stokes equations. A solution could be found using Kleiber’s Law. Measurement is possible through the heat calorie. A Pareto exists within the Navier-Stokes equations. This is done by superposing dust solutions onto fluid solutions. In summary, the Navier-Stokes equations require a theoretical solution. The Metabolic Theory of Ecology, along with Kleiber’s Law, form a theory by such standards.
Category: Functions and Analysis

[213] viXra:1703.0135 [pdf] replaced on 2017-03-29 06:22:52

Proof of Global in Time Solvability of Incompressive NSIVP in the Whole Space Using Time Transformation Analysis

Authors: Naoya Isobe
Comments: 13 Pages.

Proof of Global in Time Solvability of Incompressive NSIVP in the Whole Space Using Time Transformation Analysis.
Category: Functions and Analysis

[212] viXra:1703.0134 [pdf] replaced on 2017-03-29 06:21:16

Key point of the proof (Proof of Global in Time Solvability of Incompressive NSIVP in the Whole Space Using Time Transformation Analysis)

Authors: Naoya Isobe
Comments: 1 Page.

Key point of the proof (Proof of Global in Time Solvability of Incompressive NSIVP in the Whole Space Using Time Transformation Analysis).
Category: Functions and Analysis

[211] viXra:1703.0133 [pdf] replaced on 2017-03-29 06:19:34

Proof of Global in Time Solvability of Incompressive NSIVP in Periodic Space Using Time Transformation Analysis

Authors: Naoya Isobe
Comments: 15 Pages.

Proof of Global in Time Solvability of Incompressive NSIVP in Periodic Space Using Time Transformation Analysis.
Category: Functions and Analysis

[210] viXra:1703.0132 [pdf] replaced on 2017-03-29 06:17:44

Key point of the proof (Proof of Global in Time Solvability of Incompressive NSIVP in Periodic Space Using Time Transformation Analysis)

Authors: Naoya Isobe
Comments: 1 Page.

Key point of the proof (Proof of Global in Time Solvability of Incompressive NSIVP in Periodic Space Using Time Transformation Analysis).
Category: Functions and Analysis

[209] viXra:1703.0121 [pdf] replaced on 2017-03-29 06:11:05

Proof of Global in Time Solvability of Incompressive NSIVP in the Whole Space Using Time Transformation Analysis (Japanese Version)

Authors: Naoya Isobe
Comments: 12 Pages.

Proof of Global in Time Solvability of Incompressive NSIVP in the Whole Space Using Time Transformation Analysis.
Category: Functions and Analysis

[208] viXra:1703.0120 [pdf] replaced on 2017-03-29 06:09:07

Key point of the proof (Proof of Global in Time Solvability of Incompressive NSIVP in the Whole Space Using Time Transformation Analysis) (Japanese Version)

Authors: Naoya Isobe
Comments: 1 Page.

Key point of the proof (Proof of Global in Time Solvability of Incompressive NSIVP in the Whole Space Using Time Transformation Analysis).
Category: Functions and Analysis

[207] viXra:1703.0119 [pdf] replaced on 2017-03-29 06:06:14

Proof of Global in Time Solvability of Incompressive NSIVP in Periodic Space Using Time Transformation Analysis (Japanese Version)

Authors: Naoya Isobe
Comments: 14 Pages.

Global in time solvability of incompressive Navier-Stokes initial value problem in periodic space is proved using time transformation analysys.
Category: Functions and Analysis

[206] viXra:1703.0118 [pdf] replaced on 2017-03-29 06:02:51

Key point of the proof (Proof of Global in Time Solvability of Incompressive NSIVP in Periodic Space Using Time Transformation Analysis) (Japanese Version)

Authors: Naoya Isobe
Comments: 1 Page.

Key point of the proof (Proof of Global in Time Solvability of Incompressive NSIVP in Periodic Space Using Time Transformation Analysis)
Category: Functions and Analysis

[205] viXra:1701.0617 [pdf] replaced on 2017-05-18 05:57:40

Non-Trivial Extension of Real Numbers

Authors: Ilya Chernykh
Comments: 11 Pages. Now in English

We propose an extension of real numbers which reveals a surprising algebraic role of Bernoulli numbers, Hurwitz Zeta function, Euler-Mascheroni constant as well as generalized summations of divergent series and integrals. We extend elementary functions to the proposed numerical system and analyze some symmetries of the special elements. This reveals intriguing closed-form relations between trigonometric and inverse trigonometric functions. Besides this we show that the proposed system can be naturally used as a cardinality measure for fine comparison between infinite countable sets in metric space which respects the intuitive notion of the set's size.
Category: Functions and Analysis

[204] viXra:1701.0617 [pdf] replaced on 2017-05-12 07:46:53

Non-Trivial Extension of Real Numbers

Authors: Ilya Chernykh
Comments: 10 Pages. Now in Russian

We propose an extension of real numbers which reveals a surprising algebraic role of Bernoulli numbers, Hurwitz Zeta function, Euler-Mascheroni constant as well as generalized summations of divergent series and integrals. We extend elementary functions to the proposed numerical system and analyze some symmetries of the special elements. This reveals intriguing closed-form relations between trigonometric and inverse trigonometric functions. Besides this we show that the proposed system can be naturally used as a cardinality measure for fine comparison between infinite countable sets in metric space which respects the intuitive notion of the set's size.
Category: Functions and Analysis

[203] viXra:1701.0617 [pdf] replaced on 2017-04-27 23:34:08

Non-Trivial Extension of Real Numbers

Authors: Ilya Chernykh
Comments: 9 Pages.

We propose an extension of real numbers which reveals a surprising algebraic role of Bernoulli numbers, Hurwitz Zeta function, Euler-Mascheroni constant as well as generalized summations of divergent series and integrals. We extend elementary functions to the proposed numerical system and analyze some symmetries of the special elements. This reveals intriguing closed-form relations between trigonometric and inverse trigonometric functions. Besides this we show that the proposed system can be naturally used for fine comparison between countable sets in metric space which respects the intuitive notion of the set's size.
Category: Functions and Analysis

[202] viXra:1701.0617 [pdf] replaced on 2017-02-01 10:10:22

Non-Trivial Extension of Real Numbers

Authors: Ilya Chernykh
Comments: 8 Pages. In Russian language

We propose an extension of real numbers which reveals a surprising algebraic role of Bernoulli numbers, Hurwitz Zeta function, Euler-Mascheroni constant as well as generalized summations of divergent series and integrals. We extend elementary functions to the proposed numerical system and analyze some symmetries of the special elements. This reveals intriguing closed-form relations between trigonometric and inverse trigonometric functions. Besides this we show that the proposed system can be naturally used for fine comparison between countable sets in metric space which respects the intuitive notion of the set's size.
Category: Functions and Analysis

[201] viXra:1611.0056 [pdf] replaced on 2016-11-10 10:15:26

How to Project Onto Extended Second Order Cones

Authors: O. P. Ferreira, S. Z. Németh
Comments: 12 Pages.

The extended second order cones were introduced by S. Z. Németh and G. Zhang in [S. Z. Németh and G. Zhang. Extended Lorentz cones and variational inequalities on cylinders. J. Optim. Theory Appl., 168(3):756-768, 2016] for solving mixed complementarity problems and variational inequalities on cylinders. R. Sznajder in [R. Sznajder. The Lyapunov rank of extended second order cones. Journal of Global Optimization, 66(3):585-593, 2016] determined the automorphism groups and the Lyapunov or bilinearity ranks of these cones. S. Z. Németh and G. Zhang in [S.Z. Németh and G. Zhang. Positive operators of Extended Lorentz cones. arXiv:1608.07455v2, 2016] found both necessary conditions and sufficient conditions for a linear operator to be a positive operator of an extended second order cone. This note will give formulas for projecting onto the extended second order cones. In the most general case the formula will depend on a piecewise linear equation for one real variable which will be solved by using numerical methods.
Category: Functions and Analysis

[200] viXra:1611.0002 [pdf] replaced on 2017-01-15 23:03:42

Numerical Solution of Linear, Nonhomogeneous Differential Equation Systems via Padé Approximation

Authors: Kenneth C. Johnson
Comments: 22 Pages. [v8] Revised Appendix B

This paper generalizes an earlier investigation of linear differential equation solutions via Padé approximation (viXra:1509.0286), for the case of nonhomogeneous equations. Formulas are provided for Padé polynomial orders 1, 2, 3, and 4, for both constant-coefficient and functional-coefficient cases. The scale-and-square algorithm for the constant-coefficient case is generalized for nonhomogeneous equations. Implementation details including step size initialization and tolerance control are discussed.
Category: Functions and Analysis

[199] viXra:1611.0002 [pdf] replaced on 2016-12-21 02:06:40

Numerical Solution of Linear, Nonhomogeneous Differential Equation Systems via Padé Approximation

Authors: Kenneth C. Johnson
Comments: 22 Pages. [v7] Algorithm runtime is improved. This version should now be stable.

This paper generalizes an earlier investigation of linear differential equation solutions via Padé approximation (viXra:1509.0286), for the case of nonhomogeneous equations. Formulas are provided for Padé polynomial orders 1, 2, 3, and 4, for both constant-coefficient and functional-coefficient cases. The scale-and-square algorithm for the constant-coefficient case is generalized for nonhomogeneous equations. Implementation details including step size initialization and tolerance control are discussed.
Category: Functions and Analysis

[198] viXra:1611.0002 [pdf] replaced on 2016-12-19 03:02:40

Numerical Solution of Linear, Nonhomogeneous Differential Equation Systems via Padé Approximation

Authors: Kenneth C. Johnson
Comments: 22 Pages. [v6] update: Further improvments to error/tolerance analysis

This paper generalizes an earlier investigation of linear differential equation solutions via Padé approximation (viXra:1509.0286), for the case of nonhomogeneous equations. Formulas are provided for Padé polynomial orders 1, 2, 3, and 4, for both constant-coefficient and functional-coefficient cases. The scale-and-square algorithm for the constant-coefficient case is generalized for nonhomogeneous equations. Implementation details including step size initialization and tolerance control are discussed.
Category: Functions and Analysis

[197] viXra:1611.0002 [pdf] replaced on 2016-12-16 18:53:00

Numerical Solution of Linear, Nonhomogeneous Differential Equation Systems via Padé Approximation

Authors: Kenneth C. Johnson
Comments: 23 Pages. [v5] update: Improved error/tolerance analysis

This paper generalizes an earlier investigation of linear differential equation solutions via Padé approximation (viXra:1509.0286), for the case of nonhomogeneous equations. Formulas are provided for Padé polynomial orders 1, 2, 3, and 4, for both constant-coefficient and functional-coefficient cases. The scale-and-square algorithm for the constant-coefficient case is generalized for nonhomogeneous equations. Implementation details including step size initialization and tolerance control are discussed.
Category: Functions and Analysis

[196] viXra:1611.0002 [pdf] replaced on 2016-12-13 20:10:43

Numerical Solution of Linear, Nonhomogeneous Differential Equation Systems via Padé Approximation

Authors: Kenneth C. Johnson
Comments: 22 Pages. [v4] update: robust error/tolerance analysis

This paper generalizes an earlier investigation of linear differential equation solutions via Padé approximation (viXra:1509.0286), for the case of nonhomogeneous equations. Formulas are provided for Padé polynomial orders 1, 2, 3, and 4, for both constant-coefficient and functional-coefficient cases. The scale-and-square algorithm for the constant-coefficient case is generalized for nonhomogeneous equations. Implementation details including step size initialization and tolerance control are discussed.
Category: Functions and Analysis

[195] viXra:1611.0002 [pdf] replaced on 2016-11-30 17:18:29

Numerical Solution of Linear, Nonhomogeneous Differential Equation Systems via Padé Approximation

Authors: Kenneth C. Johnson
Comments: 16 Pages. v3 includes links to associated MATLAB and Mathematica code

This paper generalizes an earlier investigation of linear differential equation solutions via Padé approximation (viXra:1509.0286), for the case of nonhomogeneous equations. Formulas are provided for Padé polynomial orders 1, 2, 3, and 4, for both constant-coefficient and functional-coefficient cases. The scale-and-square algorithm for the constant-coefficient case is generalized for nonhomogeneous equations. Implementation details including step size initialization and tolerance control are discussed.
Category: Functions and Analysis

[194] viXra:1611.0002 [pdf] replaced on 2016-11-29 23:00:31

Numerical Solution of Linear, Nonhomogeneous Differential Equation Systems via Padé Approximation

Authors: Kenneth C. Johnson
Comments: 16 Pages.

This paper generalizes an earlier investigation of linear differential equation solutions via Padé approximation (viXra:1509.0286), for the case of nonhomogeneous equations. Formulas are provided for Padé polynomial orders 1, 2, 3, and 4, for both constant-coefficient and functional-coefficient cases. The scale-and-square algorithm for the constant-coefficient case is generalized for nonhomogeneous equations. Implementation details including step size initialization and tolerance control are discussed.
Category: Functions and Analysis

[193] viXra:1609.0349 [pdf] replaced on 2016-12-20 11:35:40

Solutions for Euler and Navier-Stokes Equations in Finite and Infinite Series of Time

Authors: Valdir Monteiro dos Santos Godoi
Comments: 22 Pages. Published at WISE Journal, Volume 6, No. 2 (Summer, 2017), pp. 60-81.

We present solutions for the Euler and Navier-Stokes equations in finite and infinite series of time, in spatial dimension N=3, firstly based on expansion in Taylor’s series of time and then, in special case, solutions for velocity given by irrotational vectors, for incompressible flows and conservative external force, the Bernoulli’s law. A little description of the Lamb’s solution for Euler equations is done.
Category: Functions and Analysis

[192] viXra:1609.0349 [pdf] replaced on 2016-11-03 19:59:17

Solutions for Euler and Navier-Stokes Equations in Finite and Infinite Series of Time

Authors: Valdir Monteiro dos Santos Godoi
Comments: 22 Pages.

We present solutions for the Euler and Navier-Stokes equations in finite and infinite series of time, in spatial dimension N=3, firstly based on expansion in Taylor’s series of time and at end concluding on necessity of solutions for velocity given by irrotational vectors, for incompressible flows and conservative external force. A little description of the Lamb’s solution for Euler equations is done.
Category: Functions and Analysis

[191] viXra:1609.0349 [pdf] replaced on 2016-11-03 11:39:04

Solutions for Euler and Navier-Stokes Equations in Finite and Infinite Series of Time

Authors: Valdir Monteiro dos Santos Godoi
Comments: 22 Pages.

We present solutions for the Euler and Navier-Stokes equations in finite and infinite series of time, in spatial dimension N=3, firstly based on expansion in Taylor’s series of time and at end concluding on necessity of solutions for velocity given by irrotational vectors, for incompressible flows and conservative external force. A little description of the Lamb’s solution for Euler equations is done.
Category: Functions and Analysis

[190] viXra:1609.0349 [pdf] replaced on 2016-10-27 18:38:53

Solutions for Euler and Navier-Stokes Equations in Finite and Infinite Series of Time

Authors: Valdir Monteiro dos Santos Godoi
Comments: 20 Pages.

We present solutions for the Euler and Navier-Stokes equations in finite and infinite series of time, in spatial dimension N=3, firstly based on expansion in Taylor’s series of time and at end concluding on necessity of solutions for velocity given by irrotational vectors, for incompressible flows and conservative external force. A little description of the Lamb’s solution for Euler equations is done.
Category: Functions and Analysis

[189] viXra:1609.0349 [pdf] replaced on 2016-10-25 00:35:09

Solutions for Euler and Navier-Stokes Equations in Finite and Infinite Series of Time

Authors: Valdir Monteiro dos Santos Godoi
Comments: 20 Pages.

We present solutions for the Euler and Navier-Stokes equations in finite and infinite series of time, in spatial dimension N=3, firstly based on expansion in Taylor’s series of time and at end concluding on necessity of solutions for velocity given by irrotational vectors, for incompressible flows and conservative external force. A little description of the Lamb’s solution for Euler equations is done.
Category: Functions and Analysis

[188] viXra:1609.0349 [pdf] replaced on 2016-10-20 20:17:39

Solutions for Euler and Navier-Stokes Equations in Finite and Infinite Series of Time

Authors: Valdir Monteiro dos Santos Godoi
Comments: 20 Pages.

We present solutions for the Euler and Navier-Stokes equations in finite and infinite series of time, in spatial dimension N=3, firstly based on expansion in Taylor’s series of time and at end concluding on necessity of solutions for velocity given by irrotational vectors, for incompressible flows and conservative external force. A little description of the Lamb’s solution for Euler equations is done.
Category: Functions and Analysis

[187] viXra:1609.0349 [pdf] replaced on 2016-10-07 11:19:51

Solutions for Euler and Navier-Stokes Equations in Finite and Infinite Series of Time

Authors: Valdir Monteiro dos Santos Godoi
Comments: 18 Pages.

We present solutions for the Euler and Navier-Stokes equations in finite and infinite series of time, in spatial dimension N=3, firstly based on expansion in Taylor’s series of time and at end concluding on necessity of solutions for velocity given by irrotational vectors, for incompressible flows and conservative external force.
Category: Functions and Analysis

[186] viXra:1609.0349 [pdf] replaced on 2016-09-29 09:09:56

Solutions for Euler and Navier-Stokes Equations in Finite and Infinite Series of Time

Authors: Valdir Monteiro dos Santos Godoi
Comments: 17 Pages.

We present solutions for the Euler and Navier-Stokes equations in finite and infinite series of time, in spatial dimension N=3, firstly based on expansion in Taylor’s series of time and at end concluding on necessity of solutions for velocity given by irrotational vectors, for incompressible flows and conservative external force.
Category: Functions and Analysis

[185] viXra:1609.0141 [pdf] replaced on 2016-12-27 13:03:54

Solutions for Euler and Navier-Stokes Equations in Powers of Time

Authors: Valdir Monteiro dos Santos Godoi
Comments: 10 Pages.

We present a solution for the Euler and Navier-Stokes equations for incompressible case given any smooth (C^∞) initial velocity, pressure and external force in N=3 spatial dimensions, based on expansion in Taylor’s series of time. Without major difficulties, it can be adapted to any spatial dimension, N≥1.
Category: Functions and Analysis

[184] viXra:1609.0141 [pdf] replaced on 2016-12-16 16:27:55

Solutions for Euler and Navier-Stokes Equations in Powers of Time

Authors: Valdir Monteiro dos Santos Godoi
Comments: 10 Pages.

We present a solution for the Euler and Navier-Stokes equations for incompressible case given any smooth (C^∞) initial velocity, pressure and external force in N=3 spatial dimensions, based on expansion in Taylor’s series of time. Without major difficulties, it can be adapted to any spatial dimension, N≥1.
Category: Functions and Analysis

[183] viXra:1609.0141 [pdf] replaced on 2016-09-27 17:45:06

Solutions for Euler and Navier-Stokes Equations in Powers of Time

Authors: Valdir Monteiro dos Santos Godoi
Comments: 8 Pages.

We present a solution for the Euler and Navier-Stokes equations for incompressible case given any smooth (C^∞) initial velocity, pressure and external force in N=3 spatial dimensions, based on expansion in Taylor’s series of time. Without major difficulties, it can be adapted to any spatial dimension, N≥1.
Category: Functions and Analysis

[182] viXra:1609.0074 [pdf] replaced on 2016-09-27 17:12:07

General Solution For Navier-Stokes Equations With Any Smooth Initial Data

Authors: Valdir Monteiro dos Santos Godoi
Comments: 6 Pages.

We present a solution for the Navier-Stokes equations for incompressible case with any smooth (C^∞) initial velocity given a pressure and external force in n = 3 spatial dimensions, based on expansion in Taylor’s series of time. Without major difficulties, it can be adapted to any spatial dimension, n≥1.
Category: Functions and Analysis

[181] viXra:1609.0006 [pdf] replaced on 2017-01-19 09:35:22

Adequate Quaternionic Generalization of Complex Differentiability

Authors: Michael Parfenov
Comments: 46 Pages

The high efficiency of complex analysis is attributable mainly to the ability to represent adequately the Euclidean physical plane essential properties, which have no counterparts on the real axis. In order to provide the similar ability in higher dimensions of space we introduce the general concept of essentially adequate differentiability, which generalizes the key features of the transition from real to complex differentiability. In view of this concept the known Cauchy-Riemann-Fueter equations can be characterized as inessentially adequate. Based on this concept, in addition to the usual complex definition, the quaternionic derivative has to be independent of the method of quaternion division: on the left or on the right. Then we deduce the generalized quaternionic Cauchy-Riemann equations as necessary and sufficient conditions for quaternionic functions to be H-holomorphic. We prove that each H-holomorphic function can be constructed from the C-holomorphic function of the same kind by replacing a complex variable by a quaternionic in an expression for the C-holomorphic function. It follows that the derivatives of all orders of H- holomorphic functions are also H-holomorphic and can be analogously constructed from the corresponding derivatives of C-holomorphic functions. The examples of Liouvillian elementary functions demonstrate the efficiency of the developed theory.
Category: Functions and Analysis

[180] viXra:1609.0006 [pdf] replaced on 2016-09-22 07:34:07

Adequate Quaternionic Generalization of Complex Differentiability

Authors: Michael Parfenov
Comments: 46 Pages

Abstract: The high efficiency of complex analysis is attributable mainly to the ability to represent adequately the Euclidean physical plane essential properties, which have no counterparts on the real axis. In order to provide the similar ability in higher dimensions of space we introduce the general concept of essentially adequate differentiability, which generalizes the key features of the transition from real to complex differentiability. In view of this concept the known Cauchy-Riemann-Fueter equations can be characterized as inessentially adequate. Based on this concept, in addition to the usual complex definition, the quaternionic derivative has to be independent of the method of quaternion division: on the left or on the right. Then we deduce the generalized quaternionic Cauchy-Riemann equations as necessary and sufficient conditions for quaternionic functions to be H-holomorphic. We prove that each H-holomorphic function can be constructed from the C-holomorphic function of the same kind by replacing a complex variable by a quaternionic in an expression for the C-holomorphic function. It follows that the derivatives of all orders of H- holomorphic functions are also H-holomorphic and can be analogously constructed from the corresponding derivatives of C-holomorphic functions. The examples of Liouvillian elementary functions demonstrate the efficiency of the developed theory.
Category: Functions and Analysis

[179] viXra:1608.0432 [pdf] replaced on 2016-09-01 12:40:33

General Solution for Navier-Stokes Equations with Conservative External Force

Authors: Valdir Monteiro dos Santos Godoi
Comments: 10 Pages.

We present two proofs of theorems on solutions of the Navier-Stokes equations for incompressible case with a conservative external force in n = 3 spatial dimensions. Without major difficulties, it can be adapted to any spatial dimension, n>=1.
Category: Functions and Analysis

[178] viXra:1606.0344 [pdf] replaced on 2016-09-07 12:56:55

Notes on Uniqueness Solutions of Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 7 Pages.

§ 1: remembering the need of imposed the boundary condition u(x,t)=0 at infinity to ensure uniqueness solutions to the Navier-Stokes equations. This section is historical only. § 2: verifying that for potential and incompressible flows there is no uniqueness solutions when the velocity is equal to zero at infinity. More than this, when the velocity is equal to zero at infinity for all t≥0 there is no uniqueness solutions, in general case. Exceptions when u^0=0. § 3: non-uniqueness in time for incompressible and potential flows, if u≠0. § 4: a more general solution of Euler and Navier-Stokes equations for incompressible and irrotational (potential) flows, given the initial velocity. § 5: Solution for Euler and Navier-Stokes equations using Taylor’s series of powers of t around t=0.
Category: Functions and Analysis

[177] viXra:1606.0344 [pdf] replaced on 2016-08-18 14:56:52

Notes on Uniqueness Solutions of Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 5 Pages.

First date: remembering the need of impose the boundary condition u(x,t)=0 at infinity to ensure uniqueness solutions to the Navier-Stokes equations. This date is historical only. § 2: verifying that for potential and incompressible flows there is no uniqueness solutions when the velocity is equal to zero at infinity. More than this, when the velocity is equal to zero at infinity for all t≥0 there is no uniqueness solutions, in general case. Exceptions when u^0=0. § 3: non-uniqueness in time for incompressible and potential flows, if u≠0. § 4: a more general solution of Euler and Navier-Stokes equations for incompressible and irrotational (potential) flows, given the initial velocity.
Category: Functions and Analysis

[176] viXra:1606.0344 [pdf] replaced on 2016-08-15 15:48:39

Notes on Uniqueness Solutions of Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 4 Pages.

First date: remembering the need of impose the boundary condition u(x,t)=0 at infinity to ensure uniqueness solutions to the Navier-Stokes equations. Second date: verifying that for potential and incompressible flows there is no uniqueness solutions when the velocity is equal to zero at infinity. More than this, when the velocity is equal to zero at infinity for all t≥0 there is no uniqueness solutions, in general case. Exceptions when u^0=0. The first date is historical only. Two last dates: non-uniqueness in time for incompressible and potential flows, if u≠0.
Category: Functions and Analysis

[175] viXra:1606.0344 [pdf] replaced on 2016-07-30 08:27:18

Note on Uniqueness Solutions of Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 4 Pages.

First date: remembering the need of impose the boundary condition u(x,t)=0 at infinity to ensure uniqueness solutions to the Navier-Stokes equations. Second date: verifying that for potential and incompressible flows there is no uniqueness solutions when the velocity is equal to zero at infinity. More than this, when the velocity is equal to zero at infinity for all t≥0 there is no uniqueness solutions, in general case. Exceptions when u^0=0. The first date is historical only. Third date: non-uniqueness in time for incompressible and potential flows, if u≠0.
Category: Functions and Analysis

[174] viXra:1606.0344 [pdf] replaced on 2016-07-29 20:50:51

Note on Uniqueness Solutions of Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 4 Pages.

First date: remembering the need of impose the boundary condition u(x,t)=0 at infinity to ensure uniqueness solutions to the Navier-Stokes equations. Second date: verifying that for potential and incompressible flows there is no uniqueness solutions when the velocity is equal to zero at infinity. More than this, when the velocity is equal to zero at infinity for all t≥0 there is no uniqueness solutions, in general case. Exceptions when u^0=0. The first date is historical only. Third date: non-uniqueness in time for incompressible and potential flows.
Category: Functions and Analysis

[173] viXra:1606.0344 [pdf] replaced on 2016-07-19 18:59:31

Note on Uniqueness Solutions of Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 3 Pages.

First date: remembering the need of impose the boundary condition u(x,t)=0 at infinity to ensure uniqueness solutions to the Navier-Stokes equations. Second date: verifying that for potential velocity and incompressible flows there is no uniqueness solutions when the velocity is equal to zero at infinity. More than this, when the velocity is equal to zero at infinity for all t≥0 there is no uniqueness solutions, in general case. Exceptions when u^0=0. The first date is historical only.
Category: Functions and Analysis

[172] viXra:1606.0344 [pdf] replaced on 2016-07-19 14:28:34

Note on Uniqueness Solutions of Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 3 Pages.

First date: remembering the need of impose the boundary condition u(x,t)=0 at infinity to ensure uniqueness solutions to the Navier-Stokes equations. Second date: verifying that for potential velocity and incompressible flows there is no uniqueness solutions when the velocity is equal to zero at infinity. More than this, when the velocity is equal to zero at infinity for all t≥0 there is no uniqueness solutions, in general case. The first date is historical only.
Category: Functions and Analysis

[171] viXra:1606.0344 [pdf] replaced on 2016-07-03 20:13:18

Note on Uniqueness Solutions of Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 2 Pages.

Remembering the need of impose the boundary condition u(x,t)=0 at infinity to ensure uniqueness solutions to the Navier-Stokes equations.
Category: Functions and Analysis

[170] viXra:1606.0344 [pdf] replaced on 2016-06-30 18:11:07

Note on Uniqueness Solutions of Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 2 Pages.

Remembering the need of impose the boundary condition u(x,t)=0 at infinity to ensure uniqueness solutions to the Navier-Stokes equations.
Category: Functions and Analysis

[169] viXra:1606.0324 [pdf] replaced on 2017-01-20 16:47:57

The Theory of N-Scales

Authors: Furkan Semih Dundar
Comments: 6 Pages. v3. Clarifications have been made.

We provide a theory of $n$-scales previously called as $n$ dimensional time scales. In previous approaches to the theory of time scales, multi-dimensional scales were taken as product space of two time scales \cite{bohner2005multiple,bohner2010surface}. $n$-scales make the mathematical structure more flexible and appropriate to real world applications in physics and related fields. Here we define an $n$-scale as an arbitrary closed subset of $\mathbb R^n$. Modified forward and backward jump operators, $\Delta$-derivatives and multiple integrals on $n$-scales are defined.
Category: Functions and Analysis

[168] viXra:1606.0324 [pdf] replaced on 2016-07-02 18:45:26

The Theory of N-Scales

Authors: Furkan Semih Dundar
Comments: 5 Pages. v2 typos are fixed

We give a theory of $n$-scale previously called as $n$ dimensional time scale. In previous approaches to the theory of time scales, multi dimensional scales were taken as product space of two time scales \cite{bohner2005multiple,bohner2010surface}. Here we define an $n$-scale as an arbitrary closed subset of $\mathbb R^n$. Modified forward and backward jump operators, $\Delta$-derivatives and multiple integrals on $n$-scales are defined.
Category: Functions and Analysis

[167] viXra:1606.0141 [pdf] replaced on 2016-06-21 11:42:55

Some Definite Integrals Over a Power Multiplied by Four Modified Bessel Functions

Authors: Richard J. Mathar
Comments: 24 Pages. Added Section 4 in version 2.

The definite integrals int_0^oo x^j I_0^s(x) I_1^t(x) K_0^u(x)K_1^v(x) dx are considered for non-negative integer j and four integer exponents s+t+u+v=4, where I and K are Modified Bessel Functions. There are essentially 15 types of the 4-fold product. Partial integration of each of these types leads correlations between these integrals. The main result are (forward) recurrences of the integrals with respect to the exponent j of the power.
Category: Functions and Analysis

[166] viXra:1605.0236 [pdf] replaced on 2016-08-28 12:57:14

Two Theorems on Solutions in Eulerian Description

Authors: Valdir Monteiro dos Santos Godoi
Comments: 8 Pages.

We present two proofs of theorems needed to the major work we are doing on existence and breakdown solutions of the Navier-Stokes equations for incompressible case in n = 3 spatial dimensions.
Category: Functions and Analysis

[165] viXra:1605.0236 [pdf] replaced on 2016-05-27 07:05:31

Two Theorems on Solutions in Eulerian Description

Authors: Valdir Monteiro dos Santos Godoi
Comments: 8 Pages.

We present two proofs of theorems needed to the major work we are doing on existence and breakdown solutions of the Navier-Stokes equations for incompressible case in n = 3 spatial dimensions.
Category: Functions and Analysis

[164] viXra:1604.0244 [pdf] replaced on 2017-07-26 09:02:29

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 14 Pages.

We find an exact solution for the system of Navier-Stokes equations, supposing that there is some solution, following the Eulerian and Lagrangian descriptions, for spatial dimension n = 3. As we had seen in other previous articles, it is possible that there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[163] viXra:1604.0244 [pdf] replaced on 2017-04-03 08:56:40

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 14 Pages.

We find an exact solution for the system of Navier-Stokes equations, supposing that there is some solution, following the Eulerian and Lagrangian descriptions, for spatial dimension n = 3. As we had seen in other previous articles, it is possible that there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[162] viXra:1604.0244 [pdf] replaced on 2017-03-28 21:39:58

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 14 Pages.

We find an exact solution for the system of Navier-Stokes equations, supposing that there is some solution, following the Eulerian and Lagrangian descriptions, for spatial dimension n = 3. As we had seen in other previous articles, it is possible that there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[161] viXra:1604.0244 [pdf] replaced on 2017-03-27 09:28:38

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 14 Pages.

We find an exact solution for the system of Navier-Stokes equations, supposing that there is some solution, following the Eulerian and Lagrangian descriptions, for spatial dimension n = 3. As we had seen in other previous articles, it is possible that there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[160] viXra:1604.0244 [pdf] replaced on 2017-03-17 22:05:04

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 13 Pages.

We find an exact solution for the system of Navier-Stokes equations, supposing that there is some solution, following the Eulerian and Lagrangian descriptions, for spatial dimension n = 3. As we had seen in other previous articles, it is possible that there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[159] viXra:1604.0244 [pdf] replaced on 2016-08-27 06:08:44

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 12 Pages. The equations 19 and 20 are not correct for n > 1

We find an exact solution for the system of Navier-Stokes equations, supposing that there is some solution, following the Eulerian and Lagrangian descriptions, for spatial dimension n = 3. As we had seen in other previous articles, it is possible that there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[158] viXra:1604.0244 [pdf] replaced on 2016-07-14 12:31:22

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 9 Pages.

We find an exact solution for the system of Navier-Stokes equations, supposing that there is some solution, following the Eulerian and Lagrangian descriptions, for spatial dimension n = 3. As we had seen in other previous articles, it is possible that there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[157] viXra:1604.0244 [pdf] replaced on 2016-07-07 14:39:22

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 9 Pages.

We find an exact solution for the system of Navier-Stokes equations following the Eulerian and Lagrangian descriptions, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[156] viXra:1604.0244 [pdf] replaced on 2016-06-24 10:51:48

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 8 Pages.

We find an exact solution for the system of Navier-Stokes equations following the Eulerian and Lagrangian descriptions, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[155] viXra:1604.0244 [pdf] replaced on 2016-06-23 12:10:31

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 8 Pages.

We find an exact solution for the system of Navier-Stokes equations following the Eulerian and Lagrangian descriptions, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[154] viXra:1604.0244 [pdf] replaced on 2016-06-20 07:01:30

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 8 Pages.

We find an exact solution for the system of Navier-Stokes equations following the Eulerian and Lagrangian descriptions, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[153] viXra:1604.0244 [pdf] replaced on 2016-06-12 22:01:12

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 8 Pages. Sorry, this paper yet is not good.

We find an exact solution for the system of Navier-Stokes equations, following the description of the Lagrangian movement of an element of fluid, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[152] viXra:1604.0244 [pdf] replaced on 2016-06-09 12:53:33

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: ERRATA: Page 4, between equations (12) and (13) include the word "square" before the word "module": square module.

We find an exact solution for the system of Navier-Stokes equations, following the description of the Lagrangian movement of an element of fluid, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[151] viXra:1604.0244 [pdf] replaced on 2016-06-05 18:00:27

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 8 Pages.

We find an exact solution for the system of Navier-Stokes equations, following the description of the Lagrangian movement of an element of fluid, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[150] viXra:1604.0244 [pdf] replaced on 2016-06-02 09:33:17

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 6 Pages.

We find an exact solution for the system of Navier-Stokes equations, following the description of the Lagrangian movement of an element of fluid, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[149] viXra:1604.0244 [pdf] replaced on 2016-05-31 09:37:15

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 6 Pages.

We find an exact solution for the system of Navier-Stokes equations, following the description of the Lagrangian movement of an element of fluid, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[148] viXra:1604.0244 [pdf] replaced on 2016-05-12 11:26:02

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 6 Pages. ERRATA: x,y,z in equation (7) are in Lagrangian description

We find an exact solution for the system of Navier-Stokes equations, following the description of the Lagrangian movement of an element of fluid, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[147] viXra:1604.0244 [pdf] replaced on 2016-05-09 13:52:01

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 6 Pages.

We find an exact solution for the system of Navier-Stokes equations, following the description of the Lagrangian movement of an element of fluid, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[146] viXra:1604.0244 [pdf] replaced on 2016-05-06 20:29:57

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 5 Pages.

We find an exact solution for the system of Navier-Stokes equations, following the description of the Lagrangian movement of an element of fluid, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[145] viXra:1604.0244 [pdf] replaced on 2016-04-27 08:05:51

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 5 Pages. It´s necessay enter the factor 1/3 multiplying the second ni in the equations 1, 5, 6 and 7.

We find an exact solution for the system of Navier-Stokes equations, following the description of the Lagrangian movement of an element of fluid, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[144] viXra:1604.0244 [pdf] replaced on 2016-04-23 21:37:32

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 5 Pages. In english.

We find an exact solution for the system of Navier-Stokes equations, following the description of the Lagrangian movement of an element of fluid, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[143] viXra:1604.0244 [pdf] replaced on 2016-04-23 04:30:18

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 4 Pages. Sorry. Unfortunately, x, y, z are not so free.

We find an exact solution for the system of Navier-Stokes equations, following the description of the Lagrangian movement of an element of fluid, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[142] viXra:1604.0244 [pdf] replaced on 2016-04-19 11:14:23

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 4 Pages. In english.

We find an exact solution for the system of Navier-Stokes equations, following the description of the Lagrangian movement of an element of fluid, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[141] viXra:1604.0244 [pdf] replaced on 2016-04-18 08:03:49

Solution for Navier-Stokes Equations – Lagrangian and Eulerian Descriptions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 4 Pages. Equations (6) and (7) are wrongs, both versions 1 and 2. Nothing like they is possible.

We find an exact solution for the system of Navier-Stokes equations, following the description of the Lagrangian movement of an element of fluid, for spatial dimension n = 3. As we had seen in other previous articles, there are infinite solutions for pressure and velocity, given only the condition of initial velocity.
Category: Functions and Analysis

[140] viXra:1604.0235 [pdf] replaced on 2016-06-12 04:36:26

On Some Series Related to Möbius Function and Lambert W-Function

Authors: Danil Krotkov
Comments: 13 Pages.

We derive some new formulas, connecting some series with Möbius function with Sine Integral and Cosine Integral functions, give the formal proof for full version of Stirling's formula with remainder term in form of definite integral of elementary function; investigate the values of new Dirichlet series function at natural numbers >1 and its behavior at the pole at s=1, connecting it with elementary constants.
Category: Functions and Analysis

[139] viXra:1604.0107 [pdf] replaced on 2016-11-18 06:21:50

A Naive Solution for Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 17 Pages.

We seek some attempt solutions for the system of Navier-Stokes equations for spatial dimensions n = 2 and n = 3. These solutions have the principal objective to provide a better numerical evaluation of the exact analytical solution, thus contributing to the solution not only from a theoretical mathematical problem, but from a practical problem worldwide.
Category: Functions and Analysis

[138] viXra:1604.0107 [pdf] replaced on 2016-04-15 07:02:55

A Naive Solution for Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 17 Pages. In english.

We seek some attempt solutions for the system of Navier-Stokes equations for spatial dimensions n = 2 and n = 3. These solutions have the principal objective to provide a better numerical evaluation of the exact analytical solution, thus contributing to the solution not only from a theoretical mathematical problem, but from a practical problem worldwide.
Category: Functions and Analysis

[137] viXra:1604.0107 [pdf] replaced on 2016-04-14 23:45:15

A Naive Solution for Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 17 Pages.

We seek some attempt solutions for the system of Navier-Stokes equations for spatial dimensions n = 2 and n = 3. These solutions have the principal objective to provide a better numerical evaluation of the exact analytical solution, thus contributing to the solution not only from a theoretical mathematical problem, but from a practical problem worldwide.
Category: Functions and Analysis

[136] viXra:1604.0107 [pdf] replaced on 2016-04-11 08:05:39

A Naive Solution for Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 17 Pages. In english.

We seek a solution attempt for the system of Navier-Stokes equations for spatial dimensions n = 2 and n = 3. This solution has the most objective to provide a better numerical evaluation of the exact analytical solution, thus contributing to the solution not only from a theoretical mathematical problem, but from a practical problem worldwide.
Category: Functions and Analysis

[135] viXra:1604.0107 [pdf] replaced on 2016-04-10 07:28:48

A Naive Solution for Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 16 Pages. In English.

We seek a solution attempt for the system of Navier-Stokes equations for spatial dimensions n = 2 and n = 3. This solution has the most objective to provide a better numerical evaluation of the exact analytical solution, thus contributing to the solution not only from a theoretical mathematical problem, but from a practical problem worldwide.
Category: Functions and Analysis

[134] viXra:1604.0107 [pdf] replaced on 2016-04-08 21:17:12

A Naive Solution for Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: Pages. Sorry, the case (B) is damaged. (2.34) and related are wrong. For now, it is safe the case (C).

We seek a solution attempt for the system of Navier-Stokes equations for spatial dimensions n = 2 and n = 3. This solution has the most objective to provide a better numerical evaluation of the exact analytical solution, thus contributing to the solution not only from a theoretical mathematical problem, but from a practical problem worldwide.
Category: Functions and Analysis

[133] viXra:1604.0107 [pdf] replaced on 2016-04-07 11:27:47

A Naive Solution for Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 16 Pages. Surprisingly, we also solved the case (B) of the Millenium Problem on Navier-Stokes equations.

We seek a solution attempt for the system of Navier-Stokes equations for spatial dimensions n = 2 and n = 3. This solution has the most objective to provide a better numerical evaluation of the exact analytical solution, thus contributing to the solution not only from a theoretical mathematical problem, but from a practical problem worldwide.
Category: Functions and Analysis

[132] viXra:1604.0107 [pdf] replaced on 2016-04-06 11:51:43

A Naive Solution for Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 15 Pages.

We seek a solution attempt for the system of Navier-Stokes equations for spatial dimensions n = 2 and n = 3. This solution has the most objective to provide a better numerical evaluation of the exact analytical solution, thus contributing to the solution not only from a theoretical mathematical problem, but from a practical problem worldwide.
Category: Functions and Analysis

[131] viXra:1603.0250 [pdf] replaced on 2016-06-22 06:52:29

Reviewing the 15th Problem of Smale: Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 20 Pages.

A most deep solution to the fifteent problem of Smale, the Navier-Stokes equations in three spatial dimentions. The answer is negative.
Category: Functions and Analysis

[130] viXra:1603.0250 [pdf] replaced on 2016-03-26 11:24:42

Reviewing the 15th Problem of Smale: Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 20 Pages.

A most deep solution to the fifteent problem of Smale, the Navier-Stokes equations in three spatial dimentions. The answer is negative.
Category: Functions and Analysis

[129] viXra:1603.0250 [pdf] replaced on 2016-03-17 18:42:56

Reviewing the 15th Problem of Smale: Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 19 Pages.

A most deep solution to the fifteent problem of Smale, the Navier-Stokes equations in three spatial dimentions. The answer is negative.
Category: Functions and Analysis

[128] viXra:1603.0050 [pdf] replaced on 2016-03-26 14:37:27

Três Exemplos de Energia Ilimitada para t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: 26 Pages.

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0 (x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. Three examples are given.
Category: Functions and Analysis

[127] viXra:1603.0050 [pdf] replaced on 2016-03-20 13:12:37

Três Exemplos de Energia Ilimitada para t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: 26 Pages.

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0 (x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. Three examples are given.
Category: Functions and Analysis

[126] viXra:1603.0050 [pdf] replaced on 2016-03-20 07:44:30

Três Exemplos de Energia Ilimitada para t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: 26 Pages.

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0 (x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. Three examples are given.
Category: Functions and Analysis

[125] viXra:1603.0050 [pdf] replaced on 2016-03-15 10:39:26

Três Exemplos de Energia Ilimitada para t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: 26 Pages.

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0 (x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. Three examples are given.
Category: Functions and Analysis

[124] viXra:1603.0050 [pdf] replaced on 2016-03-06 01:44:06

Três Exemplos de Energia Ilimitada para t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: 26 Pages.

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0 (x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. Three examples are given.
Category: Functions and Analysis

[123] viXra:1602.0246 [pdf] replaced on 2017-02-03 06:23:46

Three Examples of Unbounded Energy for t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: 53 Pages. Article (english version) published in J. Phys. Math (2016) 7: 196. The digitation or conversion of this paper in J. Phys. Math. need revision and many typographical corrections. I'm sorry.

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0(x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[122] viXra:1602.0246 [pdf] replaced on 2017-01-18 09:59:43

Three Examples of Unbounded Energy for t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: 53 Pages. Article (english version) published in J. Phys. Math (2016) 7: 196. The digitation or conversion of this paper in J. Phys. Math. need revision and many typographical corrections. I'm sorry.

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0(x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[121] viXra:1602.0246 [pdf] replaced on 2016-03-26 16:53:40

Three Examples of Unbounded Energy for t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: 53 Pages. Article (english version) published in J. Phys. Math (2016) 7: 196. The digitation or conversion of this paper in J. Phys. Math. need revision and many typographical corrections. I'm sorry.

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0(x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[120] viXra:1602.0246 [pdf] replaced on 2016-03-23 06:18:43

Three Examples of Unbounded Energy for t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: 53 Pages. Sections 1 to 4 and 8 to 10 translated

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0(x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[119] viXra:1602.0246 [pdf] replaced on 2016-03-21 12:57:07

Three Examples of Unbounded Energy for t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: 53 Pages. Sections 1 to 4 and 8 to 9 (Conclusion) translated. Equation (92) corrected.

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0(x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[118] viXra:1602.0246 [pdf] replaced on 2016-03-18 12:54:01

Three Examples of Unbounded Energy for t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: 53 Pages. Sections 1 to 4 and 9 (Conclusion) translated.

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0(x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[117] viXra:1602.0246 [pdf] replaced on 2016-03-11 06:52:07

Three Examples of Unbounded Energy for t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: 53 Pages. To me it has not been given the gift of English...

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0(x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[116] viXra:1602.0246 [pdf] replaced on 2016-03-03 06:17:25

Three Examples of Unbounded Energy for t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: 53 Pages. In section 10, replace velocity v by velocity u, vector I=(1,1,1) by J=(1,1,-2) and include f in (94). In next version the complete translation into English (I hope).

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0(x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[115] viXra:1602.0246 [pdf] replaced on 2016-02-28 19:38:15

Three Examples of Unbounded Energy for t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: 49 Pages. Páginas 14 e 38, onde se lê "sistema inexistente" leia-se "sistema impossível".

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0(x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[114] viXra:1602.0246 [pdf] replaced on 2016-02-27 15:37:55

Three Examples of Unbounded Energy for t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: 49 Pages. Need complete translation for english.

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0(x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[113] viXra:1602.0246 [pdf] replaced on 2016-02-26 05:25:06

Three Examples of Unbounded Energy for t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: Article in construction. Number of pages with total prepared for 2 idioms.

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0(x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[112] viXra:1602.0246 [pdf] replaced on 2016-02-24 05:40:26

Three Examples of Unbounded Energy for t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: Article in construction. Number of pages with total prepared for 2 idioms.

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0(x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[111] viXra:1602.0246 [pdf] replaced on 2016-02-22 07:08:59

Three Examples of Unbounded Energy for t > 0

Authors: Valdir Monteiro dos Santos Godoi
Comments: Article in construction. Number of pages with total prepared for 2 idioms.

A solution to the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy. We have proved that there are initial velocities u^0(x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations for t>0, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[110] viXra:1601.0189 [pdf] replaced on 2016-09-26 21:24:48

THE INVERSE DERIVATIVE —— The new algorithm of the derivative

Authors: GuagSan Yu
Comments: 8 Pages.

The Newton's second law and third law has proven to be wrong, his mistake is the derivative operation the limitation resulting. Therefore new derivative the computation method desiderate the creation, this is the Inverse Derivative algorithm. The Inverse Derivative is a kind of extension of the derivative computation, it is based on the derivative calculated generated, using most of the derivative formulas to converted adjusted. In the field of physics and mechanical engineering, Inverse Derivative may be a large number of employed, to replace original derivative computation method. Will produce the enormous and profound influence.
Category: Functions and Analysis

[109] viXra:1601.0189 [pdf] replaced on 2016-06-20 20:19:06

The Inverse Derivative —— the New Algorithm of the Derivative

Authors: GuagSan Yu
Comments: 8 Pages.

The Newton's second law and third law has proven to be wrong, his mistake is the derivative operation the limitation resulting. Therefore new derivative the computation method desiderate the creation, this is the Inverse Derivative algorithm. The Inverse Derivative is a kind of extension of the derivative computation, it is based on the derivative calculated generated, using most of the derivative formulas to converted adjusted. In the field of physics and mechanical engineering, Inverse Derivative may be a large number of employed, to replace original derivative computation method. Will produce the enormous and profound influence.
Category: Functions and Analysis

[108] viXra:1601.0189 [pdf] replaced on 2016-04-17 21:27:29

The Inverse Derivative —— the New Algorithm of the Derivative

Authors: GuagSan Yu
Comments: 8 Pages.

The Newton's second law and third law has proven to be wrong, his mistake is the derivative operation the limitation resulting. Therefore new derivative the computation method desiderate the creation, this is the Inverse Derivative algorithm. The Inverse Derivative is a kind of extension of the derivative computation, it is based on the derivative calculated generated, using most of the derivative formulas to converted adjusted. In the field of physics and mechanical engineering, Inverse Derivative may be a large number of employed, to replace original derivative computation method. Will produce the enormous and profound influence.
Category: Functions and Analysis

[107] viXra:1601.0165 [pdf] replaced on 2016-01-23 08:13:42

General Two-Sided Quaternion Fourier Transform, Convolution and Mustard Convolution

Authors: Eckhard Hitzer
Comments: 16 Pages. Submitted to special issue of Adv. in Appl. Cliff. Algs., 1 color figure.

In this paper we use the general two-sided quaternion Fourier transform (QFT), and relate the classical convolution of quaternion-valued signals over $\R^2$ with the Mustard convolution. A Mustard convolution can be expressed in the spectral domain as the point wise product of the QFTs of the factor functions. In full generality do we express the classical convolution of quaternion signals in terms of finite linear combinations of Mustard convolutions, and vice versa the Mustard convolution of quaternion signals in terms of finite linear combinations of classical convolutions.
Category: Functions and Analysis

[106] viXra:1601.0039 [pdf] replaced on 2016-09-26 21:16:25

(Chinese)THE Inverse Derivative

Authors: GuagSan Yu
Comments: 7 Pages. The Chinese

The Newton second law and the law of third have beened wrong by the proof, his mistake be caused by the localization of the derivative. Therefore new derivative the computation method desiderate the creation, this is the Inverse Derivative computation method. The inverse derivative is a kind of extension of the derivative computation, it creation been according to derivative the computation, the adoption is through regulatory and conversion the computation formula of the mostly derivative. In the physics and mechanics engineering realm, the Inverse Derivative be may adopted in largeness, to replace original derivative computation method. Will produce the enormous and profound influence.
Category: Functions and Analysis

[105] viXra:1601.0039 [pdf] replaced on 2016-06-20 20:27:03

(Chinese)THE Inverse Derivative

Authors: GuagSan Yu
Comments: 7 Pages. This paper is Chinese

The Newton second law and the law of third have beened wrong by the proof, his mistake be caused by the localization of the derivative. Therefore new derivative the computation method desiderate the creation, this is the Inverse Derivative computation method. The inverse derivative is a kind of extension of the derivative computation, it creation been according to derivative the computation, the adoption is through regulatory and conversion the computation formula of the mostly derivative. In the physics and mechanics engineering realm, the Inverse Derivative be may adopted in largeness, to replace original derivative computation method. Will produce the enormous and profound influence.
Category: Functions and Analysis

[104] viXra:1601.0039 [pdf] replaced on 2016-04-17 21:13:41

(Chinese)THE Inverse Derivative

Authors: GuagSan Yu
Comments: 7 Pages. This paper is Chinese

The Newton second law and the law of third have beened wrong by the proof, his mistake be caused by the localization of the derivative. Therefore new derivative the computation method desiderate the creation, this is the Inverse Derivative computation method. The inverse derivative is a kind of extension of the derivative computation, it creation been according to derivative the computation, the adoption is through regulatory and conversion the computation formula of the mostly derivative. In the physics and mechanics engineering realm, the Inverse Derivative be may adopted in largeness, to replace original derivative computation method. Will produce the enormous and profound influence.
Category: Functions and Analysis

[103] viXra:1601.0039 [pdf] replaced on 2016-01-11 01:02:38

The Inverse Derivative

Authors: GuagSan Yu
Comments: 7 Pages. This paper is Chinese

The Newton second law and the law of third have beened wrong by the proof, his mistake be caused by the localization of the derivative. Therefore new derivative the computation method desiderate the creation, this is the Inverse Derivative computation method. The inverse derivative is a kind of extension of the derivative computation, it creation been according to derivative the computation, the adoption is through regulatory and conversion the computation formula of the mostly derivative. In the physics and mechanics engineering realm, the Inverse Derivative be may adopted in largeness, to replace original derivative computation method. Will produce the enormous and profound influence.
Category: Functions and Analysis

[102] viXra:1511.0247 [pdf] replaced on 2017-01-03 15:13:28

General Method for Summing Divergent Series Using Mathematica and a Comparison to Other Summation Methods

Authors: Sinisa Bubonja
Comments: 22 Pages. Removed an entire sentence from section 1, corrected typos, results unchanged.

We are interested in finding sums of some divergent series using the general method for summing divergent series discovered in our previous work and symbolic mathematical computation program Mathematica. We make a comparison to other five summation methods implemented in Mathematica and show that our method is the stronger method than methods of Abel, Borel, Cesaro, Dirichlet and Euler.
Category: Functions and Analysis

[101] viXra:1510.0475 [pdf] replaced on 2016-02-26 19:52:02

The Integral Of The Logarithmic Derivative of Hardy's Z-function

Authors: Stephen Crowley
Comments: 8 Pages. adding references and a few more limit/residue calculations

The integral of the logarithmic derivative of the Hardy Z function is calculated and used as a basis for the construction of an entire function χ(t)=-χ(1-t) which shares roots at exactly the same points of the Riemann zeta function, but with additional (complex) roots which interlace the roots of ζ and also having real roots at the positive odd integers, 0, and the negative even integers.
Category: Functions and Analysis

[100] viXra:1510.0364 [pdf] replaced on 2016-04-14 21:15:05

Huge Class of Infinite Series with Closed-Form Expressions

Authors: Danil Krotkov
Comments: 4 Pages.

Generalized Ramanujan identity
Category: Functions and Analysis

[99] viXra:1509.0286 [pdf] replaced on 2016-04-22 13:45:55

Numerical Solution of Linear, Homogeneous Differential Equation Systems via Padé Approximation

Authors: Kenneth C. Johnson
Comments: 7 Pages. 4/22/2016 update: added 8-th order approximant (Eq 22)

This paper reports work-in-progress on the solution of first-order, linear, homogeneous differential equation systems, with non-constant coefficients, by generalization of the Padé-approximant method for exponential matrices.
Category: Functions and Analysis

[98] viXra:1508.0152 [pdf] replaced on 2016-01-24 06:06:48

Breakdown of Navier-Stokes Solutions – Bounded Energy

Authors: Valdir Monteiro dos Santos Godoi
Comments: 14 Pages. See viXra:1601.0312: "Breakdown of Navier-Stokes Solutions – Unbounded Energy for t > 0", by Valdir M.S. Godoi

Considerations on (and solution to) the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy.
Category: Functions and Analysis

[97] viXra:1508.0152 [pdf] replaced on 2016-01-22 16:28:38

Breakdown of Navier-Stokes Solutions – Bounded Energy

Authors: Valdir Monteiro dos Santos Godoi
Comments: 14 Pages. Soon a new article organizing what I wrote here.

Considerations on (and solution to) the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy.
Category: Functions and Analysis

[96] viXra:1508.0152 [pdf] replaced on 2016-01-18 05:17:25

Breakdown of Navier-Stokes Solutions – Bounded Energy

Authors: Valdir Monteiro dos Santos Godoi
Comments: 14 Pages. Soon a new article organizing what I wrote here.

Considerations on (and solution to) the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy.
Category: Functions and Analysis

[95] viXra:1508.0152 [pdf] replaced on 2016-01-12 10:00:46

Breakdown of Navier-Stokes Solutions – Bounded Energy

Authors: Valdir Monteiro dos Santos Godoi
Comments: 14 Pages. soon a new article organizing what I wrote here.

Considerations on (and solution to) the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy.
Category: Functions and Analysis

[94] viXra:1508.0152 [pdf] replaced on 2016-01-11 12:00:44

Breakdown of Navier-Stokes Solutions – Bounded Energy

Authors: Valdir Monteiro dos Santos Godoi
Comments: 13 Pages.

Considerations on (and solution to) the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy.
Category: Functions and Analysis

[93] viXra:1508.0152 [pdf] replaced on 2015-12-16 08:40:51

Breakdown of Navier-Stokes Solutions – Bounded Energy

Authors: Valdir Monteiro dos Santos Godoi
Comments: 13 Pages.

Considerations on the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy.
Category: Functions and Analysis

[92] viXra:1508.0152 [pdf] replaced on 2015-12-14 08:31:55

Breakdown of Navier-Stokes Solutions – Bounded Energy

Authors: Valdir Monteiro dos Santos Godoi
Comments: 12 Pages. Considerations on the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy.

Considerations on the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy.
Category: Functions and Analysis

[91] viXra:1508.0152 [pdf] replaced on 2015-12-10 13:04:25

Breakdown of Navier-Stokes Solutions – Bounded Energy

Authors: Valdir Monteiro dos Santos Godoi
Comments: 12 Pages.

Considerations on the 6th millenium problem, respect to breakdown of Navier-Stokes solutions and the bounded energy.
Category: Functions and Analysis

[90] viXra:1508.0152 [pdf] replaced on 2015-11-13 04:36:56

Breakdown of Navier-Stokes Solutions – Bounded Energy

Authors: Valdir Monteiro dos Santos Godoi
Comments: 10 Pages. Experts understand that it is also possible the case \alpha = 0, and thus the zero-order partial derivative of a function g is equal to g. Therefore the samples u^0 = c and u^0 = x not obeyed (4) for \alpha = 0.

We have proved that there are initial velocities u^0 (x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[89] viXra:1508.0152 [pdf] replaced on 2015-10-15 11:27:17

Breakdown of Navier-Stokes Solutions – Bounded Energy

Authors: Valdir Monteiro dos Santos Godoi
Comments: 10 Pages. The important problem solution, according to their respective description.

We have proved that there are initial velocities u^0 (x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[88] viXra:1508.0152 [pdf] replaced on 2015-09-03 11:59:04

Breakdown of Navier-Stokes Solutions – Bounded Energy

Authors: Valdir Monteiro dos Santos Godoi
Comments: 10 Pages. soon a better English translation of this article

We have proved that there are initial velocities u^0 (x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[87] viXra:1508.0152 [pdf] replaced on 2015-08-22 19:52:54

Breakdown of Navier-Stokes Solutions – Bounded Energy

Authors: Valdir Monteiro dos Santos Godoi
Comments: 5 Pages.

We have proved that there are initial velocities u^0 (x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[86] viXra:1508.0152 [pdf] replaced on 2015-08-21 10:26:14

Breakdown of Navier-Stokes Solutions – Bounded Energy

Authors: Valdir Monteiro dos Santos Godoi
Comments: 5 Pages. I hope to translate this article soon

We have proved that there are initial velocities u^0 (x) and forces f(x,t) such that there is no physically reasonable solution to the Navier-Stokes equations, which corresponds to the case (C) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[85] viXra:1508.0096 [pdf] replaced on 2015-09-03 08:41:14

A Type B Solution to the 3 Dimensional Navier Stokes Equation

Authors: Han Geurdes
Comments: 5 Pages.

It is demonstrated that the Navier Stokes equation has a smooth nontrivial exact solution in (3+1). All the required characteristics of a type B solution are verified.
Category: Functions and Analysis

[84] viXra:1508.0096 [pdf] replaced on 2015-08-18 04:34:42

A Simple Exact Solution to Bthe Navier Stokes

Authors: Han Geurdes
Comments: 9 Pages.

In this paper it is demonstrated, via construction, that the NS equation has a smooth nontrivial exact solution in (2+1). The smoothness is accomplished by connecting disconnectedp pieces off solution over a vanishing small interval. We show by example that the algebra of connecting coefficients is consistent.
Category: Functions and Analysis

[83] viXra:1508.0096 [pdf] replaced on 2015-08-14 05:01:09

A Simple Exact Solution to the Navier Stokes Equation.

Authors: Han Geurdes
Comments: 4 Pages.

In this paper it is demonstrated that the Navier Stokes equation has a smooth nontrivial exact solution. The solution is a heuristic and is the smoothly glueing together of positive and negative domain solutions.
Category: Functions and Analysis

[82] viXra:1507.0022 [pdf] replaced on 2015-09-11 10:48:17

Solving the 15th Problem of Smale: Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 6 Pages.

The solution of the fifteenth problem of Smale, the Navier-Stokes equations in three spatial dimensions.
Category: Functions and Analysis

[81] viXra:1507.0022 [pdf] replaced on 2015-07-18 19:13:45

Solving the 15th Problem of Smale: Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 6 Pages.

The solution of the fifteenth problem of Smale, the Navier-Stokes equations in three spatial dimensions.
Category: Functions and Analysis

[80] viXra:1507.0022 [pdf] replaced on 2015-07-16 12:33:02

Solving the 15th Problem of Smale: Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: Pages. Unfortunately I need to send another version. I hope the last. I need write that grad q(x) = 0 has only constant solution. Anxiety is (very) enemy of perfection. Sorry.

The solution of the fifteenth problem of Smale, the Navier-Stokes equations in three spatial dimensions.
Category: Functions and Analysis

[79] viXra:1507.0022 [pdf] replaced on 2015-07-15 12:54:43

Solving the 15th Problem of Smale: Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 4 Pages.

The solution of the fifteenth problem of Smale, the Navier-Stokes equations in three spatial dimensions.
Category: Functions and Analysis

[78] viXra:1507.0022 [pdf] replaced on 2015-07-14 11:13:06

Solving the 15th Problem of Smale: Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 4 Pages. English and portuguese

The solution of the fifteenth problem of Smale, the Navier-Stokes equations in three spatial dimensions.
Category: Functions and Analysis

[77] viXra:1507.0022 [pdf] replaced on 2015-07-05 12:29:37

Solving the 15th Problem of Smale: Navier-Stokes Equations

Authors: Valdir Monteiro dos Santos Godoi
Comments: 4 Pages. English and portuguese version.

The solution of the fifteenth problem of Smale, the Navier-Stokes equations in three spatial dimensions.
Category: Functions and Analysis

[76] viXra:1506.0019 [pdf] replaced on 2015-06-06 01:44:51

Analysis of Generals Algorithms of Numeric Solutions of Ordinary Differential Equations of Higher Order One with Initial Conditions.

Authors: Carlos Oscar Rodriguez Leal
Comments: Pages: 25. Languaje. Spanish.

In this paper several existing numerical methods of solution of ordinary differential equations of first order with initial conditions are modified, so that they can be generalized as methods of solution of ordinary differential equations of order n, according to the theory.
Category: Functions and Analysis

[75] viXra:1505.0083 [pdf] replaced on 2016-02-12 05:16:48

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 27 Pages. See also viXra:1707.0155, "On a Problem in Euler and Navier-Stokes Equations", by Valdir M.S. Godoi

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. First we study these cases at t=0 and then at t≥0.
Category: Functions and Analysis

[74] viXra:1505.0083 [pdf] replaced on 2016-01-26 05:30:49

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 27 Pages.

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. First we study these cases at t=0 and then at t≥0.
Category: Functions and Analysis

[73] viXra:1505.0083 [pdf] replaced on 2015-12-18 07:52:04

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 26 Pages. soon a new paper about Navier-Stokes equations.

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. First we study these cases at t=0 and then at t≥0.
Category: Functions and Analysis

[72] viXra:1505.0083 [pdf] replaced on 2015-12-17 10:20:25

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 27 Pages. Long article, in portuguese, many versions, corresponds to the development of my ideas on the Breakdown of Navier-Stokes solutions.

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. First we study these cases at t=0 and then at t≥0.
Category: Functions and Analysis

[71] viXra:1505.0083 [pdf] replaced on 2015-08-18 10:17:36

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 26 Pages. >> This paper will change soon. << Long article, in portuguese, many versions, corresponds to the development of my ideas on the Breakdown of the N-S solutions.

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. First we study these cases at t=0 and then at t≥0.
Category: Functions and Analysis

[70] viXra:1505.0083 [pdf] replaced on 2015-08-16 13:45:13

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 26 Pages.

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. First we study these cases at t=0 and then at t≥0.
Category: Functions and Analysis

[69] viXra:1505.0083 [pdf] replaced on 2015-08-16 10:26:14

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 26 Pages.

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. First we study these cases at t=0 and then at t≥0.
Category: Functions and Analysis

[68] viXra:1505.0083 [pdf] replaced on 2015-08-12 08:34:24

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 26 Pages. We're almost there!

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. First we study these cases at t=0 and then at t≥0.
Category: Functions and Analysis

[67] viXra:1505.0083 [pdf] replaced on 2015-07-27 06:01:06

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 26 Pages.

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. First we study these cases at t=0 and then at t≥0.
Category: Functions and Analysis

[66] viXra:1505.0083 [pdf] replaced on 2015-07-14 06:20:02

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 26 Pages.

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. First we study these cases at t=0 and then at t≥0.
Category: Functions and Analysis

[65] viXra:1505.0083 [pdf] replaced on 2015-06-11 11:45:00

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: Pages. Por um equívoco interpretei errado o significado do termo "divergence-free". Isto será acertado em breve.

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. First we study these cases at t=0 and then at t≥0.
Category: Functions and Analysis

[64] viXra:1505.0083 [pdf] replaced on 2015-06-10 05:44:13

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: see Note A on page 24

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. First we study these cases at t=0 and then at t≥0.
Category: Functions and Analysis

[63] viXra:1505.0083 [pdf] replaced on 2015-05-25 08:44:30

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 25 Pages.

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. First we study these cases at t=0 and then at t≥0.
Category: Functions and Analysis

[62] viXra:1505.0083 [pdf] replaced on 2015-05-23 11:33:52

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 24 Pages.

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. First we study these cases at t=0 and then at t≥0.
Category: Functions and Analysis

[61] viXra:1505.0083 [pdf] replaced on 2015-05-19 07:26:47

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: Pages. The examples like exp(-x) are unhappy because diverge at x negative. When like the exp (-x^2) are better.

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. First we study these cases at t=0 and then at t≥0.
Category: Functions and Analysis

[60] viXra:1505.0083 [pdf] replaced on 2015-05-18 06:19:12

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 24 Pages.

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute. First we study these cases at t=0 and then at t≥0.
Category: Functions and Analysis

[59] viXra:1505.0083 [pdf] replaced on 2015-05-17 06:46:51

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 24 Pages.

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[58] viXra:1505.0083 [pdf] replaced on 2015-05-14 11:40:26

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 22 Pages. Eureka! (Arquimedes) It´s!

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis

[57] viXra:1505.0083 [pdf] replaced on 2015-05-12 07:22:14

Breakdown of Navier-Stokes Solutions

Authors: Valdir Monteiro dos Santos Godoi
Comments: 18 Pages. In next version a proof for all t

We have proved that there are initial velocities u^0 (x) and forces F(x,t) such that there is no solution to the Navier-Stokes equations, which corresponds to the cases (C) and (D) of the problem relating to Navier-Stokes equations available on the website of the Clay Institute.
Category: Functions and Analysis