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We establish a generalization of Jacobi's elegantissima, which solves the pendulum equation. This amazing formula appears in lectures by the famous cosmologist Georges Lema\^itre, during the academic years 1955-1956 and 1956-1957. Our…

Classical Analysis and ODEs · Mathematics 2023-09-07 Luc Haine

Many identities written by $P=S=C$ are obtained, where $P$ infinite products, $S$ infinite series, and $C$ continued fractions. Such equality is called {\it triplicity}, and it can be used to compute the values of infinite series. It is…

Number Theory · Mathematics 2025-12-25 Kiyoshi Sogo

In a famous paper of $1914$ Ramanujan gave a list of $17$ extraordinary formulas for the number $\pi$. In this paper we explain a general method to prove them, based on an original idea of James Wan and in some own ideas.

Number Theory · Mathematics 2018-08-17 Jesús Guillera

We show that an apparently overlooked result of Euler from \cite{E421} is essentially equivalent to the general multiplication formula for the $\Gamma$-function that was proven by Gauss in \cite{Ga28}.

History and Overview · Mathematics 2019-01-14 Alexander Aycock

The long-standing Gaussian product inequality (GPI) conjecture states that $E [\prod_{j=1}^{n}X_j^{2m_j}]\geq\prod_{j=1}^{n}E[X_j^{2m_j}]$ for any centered Gaussian random vector $(X_1,\dots,X_n)$ and $m_1,\dots,m_n\in\mathbb{N}$. In this…

Probability · Mathematics 2022-10-17 Oliver Russell , Wei Sun

A great number of articles widen a known scientific result $P(a)$ (such as: a theorem, an inequality, or a math/physics/chemical etc. proposition or formula) by a simple recurrence procedure and using, in the proof, the proposition $P(a)$…

General Mathematics · Mathematics 2010-03-29 Florentin Smarandache

The Gaussian product inequality (GPI) conjecture is one of the most famous inequalities associated with Gaussian distributions and has attracted a lot of concerns. In this note, we investigate the quantitative versions of the…

Probability · Mathematics 2022-07-21 Ze-Chun Hu , Han Zhao , Qian-Qian Zhou

The basis of this work is a simple, extended corollary of Wilson's theorem. This corollary generates many more quotients than those already generated by Wilson's theorem, and it was of interest to derive how they relate to each other and…

Number Theory · Mathematics 2025-05-23 Ivan V. Morozov

This is my talk on the Bourbaki seminar, November 1996. It contains an elementary introduction to Borcherds' product formulas.

alg-geom · Mathematics 2008-02-03 Maxim Kontsevich

The generalized wreath product of symmetric association schemes was introduced by R.A.Bailey in the European Journal of Combinatorics 27 (2006) 428-435. It is recognized as a unification of both the wreath product and the direct product of…

Combinatorics · Mathematics 2024-09-16 Yuta Watanabe

The concept of a composed product for univariate polynomials has been explored extensively by Brawley, Brown, Carlitz, Gao, Mills, et al. Starting with these fundamental ideas and utilizing fractional power series representation (in…

Rings and Algebras · Mathematics 2007-05-23 Donald Mills , Kent M. Neuerburg

This paper provides the first explicit formula for the expectation of the product of two disjoint principal minors of a Wishart random matrix, solving a part of a broader problem put forth by Samuel S. Wilks in 1934 in the Annals of…

Probability · Mathematics 2025-03-06 Christian Genest , Frédéric Ouimet , Donald Richards

We establish a derivative formula of $p$-adic Shintani $L$-functions, thus those of totally real $p$-adic Hecke $L$-functions with trivial moduli. As an application, we present a product formula of bivariate $p$-adic Gamma values by…

Number Theory · Mathematics 2023-11-09 Luochen Zhao

In this paper, we establish the second term identity of the Siegel-Weil formula in full generality, and derive the Rallis inner product formula for global theta lifts for any dual pair. As a corollary, we resolve the non-vanishing problem…

Number Theory · Mathematics 2014-01-22 Wee Teck Gan , Yannan Qiu , Shuichiro Takeda

This paper is devoted to the proof Gauss' divergence theorem in the framework of "ultrafunctions". They are a new kind of generalized functions, which have been introduced recently [2] and developed in [4], [5] and [6]. Their peculiarity is…

Analysis of PDEs · Mathematics 2015-03-10 Vieri Benci , Lorenzo Luperi Baglini

Using some basic properties of the gamma function, we evaluate a simple class of infinite products involving Dirichlet characters as a finite product of gamma functions and, in the case of odd characters, as a finite product of sines. As a…

Number Theory · Mathematics 2018-01-30 K. Dilcher , C. Vignat

A sequence of rational numbers as a generalization of the sequence of Bernoulli numbers is introduced. Sums of products involving the terms of this generalized sequence are then obtained using an application of the Fa\`a di Bruno's formula.…

Number Theory · Mathematics 2017-03-08 Jitender Singh

In this technical report, certain interesting classification of arithmetical functions is proposed. The notion of additively decomposable and multiplicatively decomposable arithmetical functions is proposed. The concepts of arithmetical…

General Mathematics · Mathematics 2012-12-10 Garimella Rama Murthy

We aim to present two new generalized integral formulae involving product of generalized Struve function $\mathcal{W}_{p,b,c}\left( z\right)$, which are expressed in terms of the generalized Lauricella functions. The main results presented…

Classical Analysis and ODEs · Mathematics 2017-02-08 Kottakkaran Sooppy Nisar

Using the log-convexity of the Gamma function and Euler's reflection formula, we give a new proof of a classical weighted sine product inequality. Two different parameter choices yield two competing upper bounds for the same product. We…

General Mathematics · Mathematics 2026-04-16 Augustine L. Mahu , Benoît F. Sehba , Cecilia D. Williams