Functions and Analysis

1709 Submissions

[7] 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

[6] 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

[5] viXra:1709.0357 [pdf] replaced on 2018-01-22 03:40:51

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

[4] 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

[3] 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

[2] 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

[1] 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