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Related papers: A new Ramanujan-like series for $1/\pi^2$

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We give new proofs of the twelve Rogers-Ramanujan-type identities due to Rogers and Slater that are traditionally associated with the moduli 7, 14 and 28.

Number Theory · Mathematics 2024-03-25 Hjalmar Rosengren

Many classical $q$-series identities, such as the Rogers--Ramanujan identities, yield combinatorial interpretations in terms of integer partitions. Here we consider algebraically manipulating some of the classical $q$-series to yield…

Combinatorics · Mathematics 2025-02-03 Abdulaziz Alanazi , Augustine O. Munagi , Andrew V. Sills

By extracting coefficients from Wilf-Zeilberger pairs with respect to auxiliary parameters, we discover many nontrivial hypergeometric series involving harmonic numbers. In particular, we obtain a rapidly convergent series for the depth-two…

Number Theory · Mathematics 2026-02-10 Kam Cheong Au

Re presenting the traditional proof of Srinivasa Ramanujan's own favorite series for the reciprocal of $\pi$ :\begin{equation}\frac{1}{\pi} = \frac{\sqrt{8}}{9801} \sum_{n=0}^{+\infty} \frac{(4n)!}{(n!)^4} \frac{1103 + 26390n}{396^{4n}} \;…

Number Theory · Mathematics 2021-04-27 Chieh-Lei Wong

We use an integral method to establish a number of Rogers-Ramanujan type identities involving double and triple sums. The key step for proving such identities is to find some infinite products whose integrals over suitable contours are…

Number Theory · Mathematics 2023-01-12 Zhineng Cao , Liuquan Wang

In this paper, we employ the theories and techniques of hypergeometric functions to provide two distinct proofs of the conjectured identities involving multiple Ap\'ery-like series with central binomial coefficients and multiple harmonic…

Number Theory · Mathematics 2025-10-13 Ce Xu

We report new hypergeometric constructions of rational approximations to Catalan's constant, $\log2$, and $\pi^2$, their connection with already known ones, and underlying "permutation group" structures. Our principal arithmetic achievement…

Number Theory · Mathematics 2021-06-01 Christian Krattenthaler , Wadim Zudilin

In this article we prove some identities which allow us to evaluate some multiple unit square integrals. In our examples we will give the value of some double and triple integrals. Then, we prove several classical integral formulas with the…

Classical Analysis and ODEs · Mathematics 2017-05-15 Juan Carlos Sampedro

Inspired by a famous identity of Ramanujan, we propose a general formula linearizing the convolution of Dirichlet series as the sum of Dirichlet series with modified weights; its specialization produces new identities and recovers several…

Number Theory · Mathematics 2022-02-04 Parth Chavan , Sarth Chavan , Christophe Vignat , Tanay Wakhare

In this paper, the power series and hypergeometric series representations of the beta and Ramanujan functions \begin{equation*} \mathcal{B}\left( x\right) =\frac{\Gamma \left( x\right)^{2}}{\Gamma \left( 2x\right) }\text{ and…

Classical Analysis and ODEs · Mathematics 2024-07-23 Zhen-Hang Yang , Miao-Kun Wang , Tie-Hong Zhao

We obtained a new formula for $\pi$.

Number Theory · Mathematics 2025-11-05 Nikita Kalinin , Mikhail Shkolnikov

We prove two supercongruences for specific truncated hypergeometric series. These include an uniparametric extension of a supercongruence that was recently established by Long and Ramakrishna. Our proofs involve special instances of various…

Number Theory · Mathematics 2020-12-29 Victor J. W. Guo , Ji-Cai Liu , Michael J. Schlosser

In 1997, van Hamme developed $p-$adic analogs, for primes $p$, of several series which relate hypergeometric series to values of the gamma function, originally studied by Ramanujan. These analogs relate truncated sums of hypergeometric…

Number Theory · Mathematics 2015-04-07 Holly Swisher

We present a new conformal algebra. It is Z2 x Z2 graded and generated by three N=1 superconformal algebras coupled to each other by nontrivial relations of parafermionic type. The representation theory and unitary models of the algebra are…

High Energy Physics - Theory · Physics 2009-01-23 Boris Noyvert

We show that several terminating summation and transformation formulas for basic hypergeometric series can be proved in a straightforward way. Along the same line, new finite forms of Jacobi's triple product identity and Watson's quintuple…

Combinatorics · Mathematics 2011-03-25 Victor J. W. Guo , Jiang Zeng

The theory of supercharacters, recently developed by Diaconis-Isaacs and Andre, can be used to derive the fundamental algebraic properties of Ramanujan sums. This machinery frequently yields one-line proofs of difficult identities and…

Number Theory · Mathematics 2014-10-23 Christopher F. Fowler , Stephan Ramon Garcia , Gizem Karaali

In this paper we present some new identities of hypergeometric type for multiple harmonic sums whose indices are the sequences $(\{1\}^a,c,\{1\}^b),$ $(\{2\}^a,c,\{2\}^b)$ and prove a number of congruences for these sums modulo a prime $p.$…

Number Theory · Mathematics 2013-03-25 Khodabakhsh Hessami Pilehrood , Tatiana Hessami Pilehrood , Roberto Tauraso

We present a new "integral=series" type identity of multiple zeta values, and show that this is equivalent in a suitable sense to the fundamental theorem of regularization. We conjecture that this identity is enough to describe all linear…

Number Theory · Mathematics 2016-11-15 Masanobu Kaneko , Shuji Yamamoto

We derive, using a heuristic method, a $p$-adic mate of bilateral Ramanujan series. It has (among other consequences) the Zudiln's supercongruences for rational Ramanujan series.

Number Theory · Mathematics 2024-05-27 Jesús Guillera

In a well-known 1914 paper, Ramanujan gave a number of rapidly converging series for $1/\pi$ which are derived using modular functions of higher level. D. V. and G. V. Chudnovsky in their 1988 paper derived an analogous series representing…

Number Theory · Mathematics 2017-07-04 Imin Chen , Gleb Glebov