Functions and Analysis

1712 Submissions

[8] viXra:1712.0539 [pdf] submitted on 2017-12-20 06:47:39

Integrals Containing the Infinite Product $\prod_{n=0}^\infty\left[1+\left(\frac{x}{b+n}\right)^3\right]$

Authors: Martin Nicholson
Comments: 8 Pages.

We study several integrals that contain the infinite product ${\displaystyle\prod_{n=0}^\infty}\left[1+\left(\frac{x}{b+n}\right)^3\right]$ in the denominator of their integrand. These considerations lead to closed form evaluation $\displaystyle\int_{-\infty}^\infty\frac{dx}{\left(e^x+e^{-x}+e^{ix\sqrt{3}}\right)^2}=\frac{1}{3}$ and to some other formulas.
Category: Functions and Analysis

[7] viXra:1712.0519 [pdf] submitted on 2017-12-19 19:49:52

The Bilateral Laplace Transform of the Positive Even Functions and a Proof of Riemann Hypothesis

Authors: Seong Won Cha
Comments: 11 Pages.

We show that some interesting properties of the bilateral Laplace transform of even and positive functions both on the line z=x+iy0 and on a circle. We also show the Riemann hypothesis is true using these properties.
Category: Functions and Analysis

[6] viXra:1712.0486 [pdf] replaced on 2019-12-28 14:52:22

Finite and Infinite Product Transformations

Authors: Martin Nicholson
Comments: 12 Pages. 6 new theorems added, presentation and notation improved, more details added in the abstract, typo corrected

Several infinite products are studied that satisfy the transformation relation of the type $f(\alpha)=f(1/\alpha)$. For certain values of the parameters these infinite products reduce to modular forms. Finite counterparts of these infinite products are motivated by solution of Dirichlet boundary problem on a rectangular grid. These finite product formulas give an elementary proof of several modular transformations.
Category: Functions and Analysis

[5] viXra:1712.0478 [pdf] replaced on 2020-01-13 12:11:22

Two-Dimensional Fourier Transformations and Double Mordell Integrals

Authors: Martin Nicholson
Comments: 12 Pages. 2 references and a new section is adde, presentation and notation improved, typos corrected, abstract rewritten to better reflect the contents of the paper.

Several Fourier transformations of functions of one and two variables are evaluated andthen used to derive some integral and series identities. It is shown that certain double Mordellintegrals can be reduced to a sum of products of one-dimensional Mordell integrals. As aconsequence of this reduction, a quadratic polynomial identity is found connecting productsof certain one-dimensional Mordell integrals. An integral that depends on one real valuedparameter is calculated reminiscent of an integral previously calculated by Ramanujan andGlasser. Some connections to elliptic functions and lattice sums are discussed.
Category: Functions and Analysis

[4] viXra:1712.0463 [pdf] submitted on 2017-12-16 01:01:52

Proof that a Derivative is a Fraction, and the Chain Rule is the Product of Such Fractions

Authors: Carl Wigert, Quincy-Howard Xavier
Comments: 1 Page.

In this paper, we define very small numbers and very very small numbers and use them to construct derivatives as ratios of real numbers. We then use that result to rigorously prove that the chain rule treats derivatives as fractions being multiplied.
Category: Functions and Analysis

[3] viXra:1712.0355 [pdf] submitted on 2017-12-08 19:58:12

On_the_bilateral_laplace_transform_of_the_positive_even_functions_and_proof_of_the_riemann_hypothesis

Authors: Seong Won Cha
Comments: 9 Pages.

This is a brief report before writing a full paper. We proved the Riemann hypothesis using the properties of the bilateral Laplace transform.
Category: Functions and Analysis

[2] viXra:1712.0113 [pdf] submitted on 2017-12-04 21:50:14

Multiplicative Versions of Infinitesimal Calculus

Authors: D Williams
Comments: 8 Pages.

An overview of some types of multiplicative infinitesimal calculi is given. Analogs of standard results ("Simpson's" Product, "Maclurin's" Product, fundamental theorems, etc) are shown. An area that deserves more attention.
Category: Functions and Analysis

[1] viXra:1712.0019 [pdf] submitted on 2017-12-02 12:52:22

The Troncated Integral

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

It is showed that a large class of functions defined by integrals verify the Riemann Hypothesis.
Category: Functions and Analysis