Proof of a conjecture of Andrews and Bachraoui on a Hecke sum

Fuente: arXiv
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Auteurs principaux: Banerjee, Koustav, Bringmann, Kathrin
Format: Preprint
Publié: 2026
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author Banerjee, Koustav
Bringmann, Kathrin
author_facet Banerjee, Koustav
Bringmann, Kathrin
contents 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 Zwegers' theory of indefinite theta functions together with modular transformation properties of mock theta functions.
format Preprint
id arxiv_https___arxiv_org_abs_2605_10300
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Proof of a conjecture of Andrews and Bachraoui on a Hecke sum
Banerjee, Koustav
Bringmann, Kathrin
Number Theory
Combinatorics
11F11, 11F20, 11F37, 11P81
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 Zwegers' theory of indefinite theta functions together with modular transformation properties of mock theta functions.
title Proof of a conjecture of Andrews and Bachraoui on a Hecke sum
topic Number Theory
Combinatorics
11F11, 11F20, 11F37, 11P81
url https://arxiv.org/abs/2605.10300