English
Related papers

Related papers: Ramanujan-Sato-like series

200 papers

We show how a method to construct canonical differential equations for multi-loop Feynman integrals recently introduced by some of the authors can be extended to cases where the associated geometry is of Calabi-Yau type and even beyond.…

High Energy Physics - Theory · Physics 2025-03-27 Claude Duhr , Sara Maggio , Christoph Nega , Benjamin Sauer , Lorenzo Tancredi , Fabian J. Wagner

In this paper, we present a $q$-analogue of the polynomial reduction which was originally developed for hypergeometric terms. Using the $q$-Gosper representation, we describe the structure of rational functions that are summable when…

Combinatorics · Mathematics 2022-08-02 Rong-Hua Wang , Michael X. X. Zhong

Representation of analytic functions as convergent series in Jacobi polynomials $P_n^{(a,b)}$ is reformulated using a unified approach for almost all complex $a, b$. The coefficients of the series are given as usual integrals in the…

Classical Analysis and ODEs · Mathematics 2018-12-21 Rodica D. Costin , Marina David

Ramanujan (1916) and Shen (1999) discovered differential equations for classical Eisenstein series. Motivated by them, we derive new differential equations for Eisenstein series of level 2 from the second kind of Jacobi theta function. This…

Number Theory · Mathematics 2024-04-16 Masato Kobayashi

Ramanujan derived a sequence of even weight $2n$ quasimodular forms $U_{2n}(q)$ from derivatives of Jacobi's weight $3/2$ theta function. Using the generating function for this sequence, one can construct sequences of quasimodular forms of…

Number Theory · Mathematics 2025-10-08 Tewodros Amdeberhan , Leonid G. Fel , Ken Ono

Through a systematic approach on generating Wilf-Zeilberger-pairs, we prove some hypergeometric identities conjectures due to Z.W. Sun, J. Guillera and Y. Zhao etc., including two Ramanujan-$1/\pi^4$, one $1/\pi^3$ formulas as well as a…

Combinatorics · Mathematics 2025-01-30 Kam Cheong Au

Let $\mathbb{A}=\mathbb{F}_{q}[T]$ be the polynomial ring over finite field $\mathbb{F}_{q}$, and $\mathbb{A}_{+}$ be the set of monic polynomials in $\mathbb{A}$. In this paper, we show that a large class of arithmetic functions in…

Number Theory · Mathematics 2019-10-01 Tianfang Qi , Su Hu

Using a simple classical method we derive bilateral series identities from terminating ones. In particular, we show how to deduce Ramanujan's 1-psi-1 summation from the q-Pfaff-Saalschuetz summation. Further, we apply the same method to our…

Combinatorics · Mathematics 2007-05-23 Michael J. Schlosser

In terms of the hypergeometric method, we give the extensions of two known series for $\pi$. Further, other twenty-nine summation formulas for $\pi$, $\pi^2$ and $1/\pi$ with free parameters are also derived in the same way.

Combinatorics · Mathematics 2012-03-27 Chuan Wei , Dianxuan Gong , Jianbo Li

We present some elementary derivations of summation and transformation formulas for q-series, which are different from, and in several cases simpler or shorter than, those presented in the Gasper and Bahman [1990] "Basic Hypergeometric…

Classical Analysis and ODEs · Mathematics 2008-02-03 George Gasper

Motivated by the substantial development of the special functions, we contribute to establish some rigorous results on the general series identities with bounded sequences and hypergeometric functions with different arguments, which are…

General Mathematics · Mathematics 2019-02-19 Mohammad Idris Qureshi , Saima Jabee , Mohammad Shadab

In a recent paper G. Bhatnagar has given simple proofs of some of Ramanujan's continued fractions. In this note we show that some variants of these continued fractions are generating functions of q-Schroeder-like numbers.

History and Overview · Mathematics 2012-10-02 Johann Cigler

In the first part of this paper we prove a conjecture of Hikami on the values of the radial limits of a family of $q$-hypergeometric false theta functions. Hikami conjectured that the radial limits are obtained by evaluating a truncated…

Classical Analysis and ODEs · Mathematics 2025-01-15 Jeremy Lovejoy , Rishabh Sarma

By means of the extended Gould-Hsu inverse series relations, we find that the dual relation of Dougall's summation theorem for the well--poised $_7F_6$-series can be utilized to construct numerous interesting Ramanujan--like infinite series…

Number Theory · Mathematics 2021-03-16 Wenchang Chu

In this paper we investigate existence and characterization of non-radial pseudo-radial (or separable) solutions of some semi-linear elliptic equations on symmetric 2-dimensional domains. The problem reduces to the phase plane analysis of a…

Analysis of PDEs · Mathematics 2008-12-18 Ahmad El Soufi , Mustapha Jazar

We formulate and prove the analogue of the Ramanujan Conjectures for modular forms of half-integral weight subject to some ramification restriction in the setting of a polynomial ring over a finite field. This is applied to give an…

Number Theory · Mathematics 2015-11-11 S. Ali Altug , Jacob Tsimerman

We prove, in a quantitative form, linear independence results for values of a certain class of q-series, which generalize classical q-hypergeometric series. These results refine our recent estimates.

Number Theory · Mathematics 2015-05-27 Igor Rochev

Using functional equations, we derive noncommutative extensions of Ramanujan's 1-psi-1 summation.

Classical Analysis and ODEs · Mathematics 2007-05-23 Michael Schlosser

Six families of generalized hypergeometric series in a variable $x$ and an arbitrary number of parameters are considered. Each of them is indexed by an integer $n$. Linear recurrence relations in $n$ relate these functions and their product…

Classical Analysis and ODEs · Mathematics 2022-10-25 Nicolas Brisebarre , Bruno Salvy

The main aim of the present work is to give some interesting the $q$-analogues of various $q$-recurrence relations, $q$-recursion formulas, $q$-partial derivative relations, $q$-integral representations, transformation and summation…

Classical Analysis and ODEs · Mathematics 2022-07-06 Ayman Shehata