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Related papers: Hecke-Rogers double-sums and false theta functions

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Ramanujan presented four identities for third order mock theta functions in his Lost Notebook. In 2005, with the aid of complex analysis, Yesilyurt first proved these four identities. Recently, Andrews et al. provided different proofs by…

Combinatorics · Mathematics 2018-12-04 Su-Ping Cui , Nancy S. S. Gu , Chen-Yang Su

In this paper we continue the study of codes over imaginary quadratic fields and their weight enumerators and theta functions. We present new examples of non-equivalent codes over rings of characteristic $p=2$ and $p=5$ which have the same…

Number Theory · Mathematics 2019-05-30 Tony Shaska , Caleb Shor

Ramanujan studied the analytic properties of many $q$-hypergeometric series. Of those, mock theta functions have been particularly intriguing, and by work of Zwegers, we now know how these curious $q$-series fit into the theory of…

Number Theory · Mathematics 2011-09-30 Kathrin Bringmann , Amanda Folsom , Robert C. Rhoades

In this paper, we prove a conjecture of Andrews and Bachraoui relating a generating function arising from two-color partitions (with odd smallest part and restrictions on the even parts) to a Hecke-type double sum. Our proof is based on…

Number Theory · Mathematics 2026-05-12 Koustav Banerjee , Kathrin Bringmann

The generalization of new mock theta functions of Andrews and Bringmann et al are given. Further we have given the expansion of these bilateral generalized new mock theta functions as 2 phi 1 series by Slaters transformation. After that we…

Number Theory · Mathematics 2023-08-10 Swayamprabha Tiwari , Sameena Saba

We give a new theta-function identity, a special case of which is utilised to prove Kawanaka's Macdonald polynomial conjecture. The theta-function identity further yields a transformation formula for multivariable elliptic hypergeometric…

Classical Analysis and ODEs · Mathematics 2009-05-26 Robin Langer , Michael J. Schlosser , S. Ole Warnaar

In this paper we continue work in the direction of a characterization of rational period functions on the Hecke groups. We examine the role that Hecke-symmetry of poles plays in this setting, and pay particular attention to non-symmetric…

Number Theory · Mathematics 2014-09-29 Wendell Ressler

Determining the explicit forms and modularity for string functions and branching coefficients for Kac--Moody algebras after Kac, Peterson, and Wakimoto is an important problem. In a pair of papers, Borozenets and Mortenson determined the…

Number Theory · Mathematics 2025-10-08 Stepan Konenkov , Eric T. Mortenson

We prove a general result on Bailey pairs and show that two Bailey pairs of Bringmann and Kane are special cases. We also show how to use a change of base formula to pass from the pairs of Bringmann and Kane to pairs used by Andrews in his…

Number Theory · Mathematics 2021-02-04 Jeremy Lovejoy , Robert Osburn

Andrews-Dyson-Hickerson, Cohen build a striking relation between q-hypergeometric series, real quadratic fields, and Maass forms. Thanks to the works of Lewis-Zagier and Zwegers we have a complete understanding on the part of these…

Number Theory · Mathematics 2025-02-28 Kathrin Bringmann , William Craig , Caner Nazaroglu

The modular transformations of Ramanujan's tenth order mock theta functions are computed, beginning from Choi's Hecke-type identites and using Zwegers' results on indefinite theta series. Explicit completions and shadows are found as an…

Number Theory · Mathematics 2012-12-17 Wynton Moore

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

Ramanujan introduced mock theta functions in his last letter to G.H.Hardy. He provided examples and various relations between them. G.N.Watson found transformations for the third order mock theta functions $f(q)$ and $\omega$(q). Zwegers in…

Number Theory · Mathematics 2025-10-27 Frank Garvan , Avi Mukhopadhyay

False theta functions closely resemble ordinary theta functions, however they do not have the modular transformation properties that theta functions have. In this paper, we find modular completions for false theta functions, which among…

Number Theory · Mathematics 2019-04-12 Kathrin Bringmann , Caner Nazaroglu

Since the study by Jacobi and Hecke, Hecke-type series have received a lot of attention. Unlike such series associated with indefinite quadratic forms, identities on Hecke-type series associated with definite quadratic forms are quite rare…

Number Theory · Mathematics 2020-03-18 Bing He

Recently, Rosengren utilized an integral method to prove a number of conjectural identities found by Kanade and Russell. Using this integral method, we give new proofs to some double sum identities of Rogers-Ramanujan type. These identities…

Combinatorics · Mathematics 2022-05-30 Liuquan Wang

We give short proofs of conjectural identities due to Gordon and McIntosh involving two 10th order mock theta functions.

Number Theory · Mathematics 2021-02-03 Jeremy Lovejoy , Robert Osburn

Recently, Keith investigated arithmetic properties for the reciprocals of some false theta functions and posed several conjectures. In this paper, we prove some parity results for the reciprocals of some false theta functions by using some…

Number Theory · Mathematics 2025-12-03 Jing Jin , Huan Xu , Olivia X. M. Yao

In 1988, Andrews, Dyson and Hickerson initiated the study of q-hypergeometric series whose coefficients are dictated by the arithmetic in real quadratic fields. In this paper, we provide a dozen q-hypergeometric double sums which are…

Number Theory · Mathematics 2021-02-04 Jeremy Lovejoy , Robert Osburn

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