Restricted Overpartitions and concave compositions: their modularity and asymptotics

Fuente: arXiv
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Main Authors: Banerjee, Koustav, Bringmann, Kathrin, Dixit, Atul
Format: Preprint
Published: 2026
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author Banerjee, Koustav
Bringmann, Kathrin
Dixit, Atul
author_facet Banerjee, Koustav
Bringmann, Kathrin
Dixit, Atul
contents In this paper we study restricted overpartitions and concave compositions. In several cases the resulting generating functions involve simultaneously modular forms, mock theta functions, mock Maass theta functions, and false theta functions, illustrating the appearance of mixed modular structures in restricted partition problems. Moreover, we obtain their asymptotic main terms. We also study related rank statistics.
format Preprint
id arxiv_https___arxiv_org_abs_2601_03998
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Restricted Overpartitions and concave compositions: their modularity and asymptotics
Banerjee, Koustav
Bringmann, Kathrin
Dixit, Atul
Number Theory
Combinatorics
11F03, 11F37, 11P82, 11P83, 33D15
In this paper we study restricted overpartitions and concave compositions. In several cases the resulting generating functions involve simultaneously modular forms, mock theta functions, mock Maass theta functions, and false theta functions, illustrating the appearance of mixed modular structures in restricted partition problems. Moreover, we obtain their asymptotic main terms. We also study related rank statistics.
title Restricted Overpartitions and concave compositions: their modularity and asymptotics
topic Number Theory
Combinatorics
11F03, 11F37, 11P82, 11P83, 33D15
url https://arxiv.org/abs/2601.03998