$\ell$-adic properties and congruences of $\ell$-regular partition functions

Fuente: arXiv
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Main Authors: El-Guindy, Ahmad, Ghazy, Mostafa M.
Format: Preprint
Published: 2024
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author El-Guindy, Ahmad
Ghazy, Mostafa M.
author_facet El-Guindy, Ahmad
Ghazy, Mostafa M.
contents We study $\ell$-regular partitions by defining a sequence of modular forms of level $\ell$ and quadratic character which encode their $\ell$-adic behavior. We show that this sequence is congruent modulo increasing powers of $\ell$ to level $1$ modular forms of increasing weights. We then prove that certain $\mathbb{Z}/\ell^m\mathbb{Z}$-modules generated by our sequence are isomorphic to certain subspaces of level $1$ cusp forms of weight independent of the power of $\ell$, leading to a uniform bound on the ranks of those modules and consequently to $\ell$-adic relations between $\ell$-regular partition values.
format Preprint
id arxiv_https___arxiv_org_abs_2408_04462
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle $\ell$-adic properties and congruences of $\ell$-regular partition functions
El-Guindy, Ahmad
Ghazy, Mostafa M.
Number Theory
11F33, 11P83
We study $\ell$-regular partitions by defining a sequence of modular forms of level $\ell$ and quadratic character which encode their $\ell$-adic behavior. We show that this sequence is congruent modulo increasing powers of $\ell$ to level $1$ modular forms of increasing weights. We then prove that certain $\mathbb{Z}/\ell^m\mathbb{Z}$-modules generated by our sequence are isomorphic to certain subspaces of level $1$ cusp forms of weight independent of the power of $\ell$, leading to a uniform bound on the ranks of those modules and consequently to $\ell$-adic relations between $\ell$-regular partition values.
title $\ell$-adic properties and congruences of $\ell$-regular partition functions
topic Number Theory
11F33, 11P83
url https://arxiv.org/abs/2408.04462