New Ramanujan-type congruences for overpartitions modulo $11$ and $13$

Fuente: arXiv
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Main Author: Wei, XuanLing
Format: Preprint
Published: 2026
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author Wei, XuanLing
author_facet Wei, XuanLing
contents In this paper, we establish two new Ramanujan-type congruences for the overpartition function: $\overline{p}(11\times(8n+5))\equiv 0 \pmod{11}$ and $\overline{p}(13\times 2^6(8n+7))\equiv 0 \pmod{13}$. The proofs rely on the theory of modular forms. We conjecture potential Ramanujan-type congruences for overpartitions modulo 7, 17, 19 and 23.
format Preprint
id arxiv_https___arxiv_org_abs_2603_08510
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle New Ramanujan-type congruences for overpartitions modulo $11$ and $13$
Wei, XuanLing
Number Theory
11P83
In this paper, we establish two new Ramanujan-type congruences for the overpartition function: $\overline{p}(11\times(8n+5))\equiv 0 \pmod{11}$ and $\overline{p}(13\times 2^6(8n+7))\equiv 0 \pmod{13}$. The proofs rely on the theory of modular forms. We conjecture potential Ramanujan-type congruences for overpartitions modulo 7, 17, 19 and 23.
title New Ramanujan-type congruences for overpartitions modulo $11$ and $13$
topic Number Theory
11P83
url https://arxiv.org/abs/2603.08510