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Related papers: On a symmetric $q$-series identity

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We prove q-analogues of two Ramanujan-type series for $1/\pi$ from $q$-analogues of ordinary WZ pairs.

Number Theory · Mathematics 2018-04-11 Jesús Guillera

We prove a q-series identity that generalises Macdonald's A_{2n}^{(2)} eta-function identity and the Rogers-Ramanujan identities. We conjecture our result to generalise even further to also include the Andrews-Gordon identities.

Combinatorics · Mathematics 2012-02-28 S. Ole Warnaar , Wadim Zudilin

We evaluate $q$-Bessel functions at an infinite sequence of points and introduce a generalization of the Ramanujan function and give an extension of the $m$-version of the Rogers-Ramanujan identities. We also prove several generating…

Classical Analysis and ODEs · Mathematics 2015-08-28 Mourad E. H. Ismail , Ruiming Zhang

In the present paper, we establish a general transformation for $q$-series which contains L. Wang et al's transformation involved in Nahm series. As direct applications, some concrete new transformation formulas for the ${}_{r+1}\phi_r$…

Combinatorics · Mathematics 2024-05-28 Jianan Xu , Xinrong Ma

Recently Zagier proved a remarkable q-series identity. We show that this identity can also be proved by modifying Franklin's classical proof of Euler's pentagonal number theorem.

Number Theory · Mathematics 2007-05-23 Robin Chapman

In this we paper we prove several new identities of the Rogers-Ramanujan-Slater type. These identities were found as the result of computer searches. The proofs involve a variety of techniques, including series-series identities, Bailey…

Number Theory · Mathematics 2018-12-27 Douglas Bowman , James Mc Laughlin , Andrew V. Sills

An identity by Ramanujan is expressed using polar coordinates, so that its proof reduces to the verification of an elementary trigonometric identity. This approach produces a few variations on Ramanujan's original identity.

Number Theory · Mathematics 2026-03-10 C. Vignat

Here we consider the $q$-series coming from the Hall-Littlewood polynomials, \begin{equation*} R_\nu(a,b;q)=\sum_{\substack{\lambda \\[1pt] \lambda_1\leq a}} q^{c|\lambda|} P_{2\lambda}\big(1,q,q^2,\dots;q^{2b+d}\big). \end{equation*} These…

Combinatorics · Mathematics 2022-06-22 Claire Frechette , Madeline Locus

Quite recently, the first author investigated vanishing coefficients of the arithmetic progressions in several $q$-series expansions. In this paper, we further study the signs of coefficients in two $q$-series expansions and establish some…

Combinatorics · Mathematics 2018-12-18 Dazhao Tang , Ernest. X. W. Xia

We prove some Lambert series which were stated by Gosper without proof or reference. As an application, we shall evaluate integrals involving Ramanujan theta function $\psi(q)$. Furthermore, motivated by Ramanujan's identities for…

Number Theory · Mathematics 2019-01-29 Mohamed El Bachraoui

In this paper, we investigate applications of the ordinary derivative operator, instead of the $q$-derivative operator, to the theory of $q$-series. As main results, many new summation and transformation formulas are established which are…

Combinatorics · Mathematics 2023-08-15 Jin Wang , Ruiqi Ruan , Xinrong Ma

We provide the missing member of a family of four $q$-series identities related to the modulus 36, the other members having been found by Ramanujan and Slater. We examine combinatorial implications of the identities in this family, and of…

Combinatorics · Mathematics 2018-12-31 James Mc Laughlin , Andrew V. Sills

A generalized Bailey pair, which contains several special cases considered by Bailey (\emph{Proc. London Math. Soc. (2)}, 50 (1949), 421--435), is derived and used to find a number of new Rogers-Ramanujan type identities. Consideration of…

Combinatorics · Mathematics 2018-11-29 Andrew V. Sills

We make a summary of the different types of proofs adding some new ideas. In addition we conjecture some relations which could be necessary in "modular type proofs" (not still found) of the Ramanujan-like series for 1/\pi^2.

Number Theory · Mathematics 2012-10-16 Jesús Guillera

We prove a duality relation for generalized basic hypergeometric functions. It forms a $q$-extension of a recent result of the second and the third named authors and generalizes both a $q$-hypergeometric identity due to the third named…

Classical Analysis and ODEs · Mathematics 2021-09-09 S. I. Kalmykov , D. Karp , A. Kuznetsov

We state and prove a claim of Ramanujan. As a consequence, a large class of Saalchutzian hypergeometric series is summed in closed form.

Classical Analysis and ODEs · Mathematics 2007-06-13 David M. Bradley

We prove a kind of bilateral semi-terminating series related to Ramanujan-like series for negative powers of $\pi$, and conjecture a type of supercongruences associated to them. We support this conjecture by checking all the cases for many…

Number Theory · Mathematics 2019-08-15 Jesús Guillera

We prove an interesting identity for the sum of determinants, which is a generalization of the sum of a geometric progression. The proof is quite long and a number of other identities are proved along the way. Some of the more elementary…

Combinatorics · Mathematics 2024-08-28 T. C. Dorlas

We prove a necessary and sufficient condition for a symmetric association scheme to be a Q-polynomial scheme.

Combinatorics · Mathematics 2011-06-14 Hirotake Kurihara , Hiroshi Nozaki

We establish some new bilateral double-sum Rogers-Ramanujan identities involving parameters. As applications, these identities yield several new multi-sum Rogers-Ramanujan type identities. Our proofs utilize the theory of basic…

Combinatorics · Mathematics 2026-04-21 Dandan Chen , Tianjian Xu