Symplectic Hecke eigenbases from Ehrhart polynomials

Fuente: arXiv
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Autori principali: Alfes, Claudia, Maglione, Joshua, Voll, Christopher
Natura: Preprint
Pubblicazione: 2025
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author Alfes, Claudia
Maglione, Joshua
Voll, Christopher
author_facet Alfes, Claudia
Maglione, Joshua
Voll, Christopher
contents For $n\in\mathbb{N}$ and $\ell\in\{0,1,\dots,n\}$, we consider the function extracting the $\ell$th coefficient of the Ehrhart polynomials of lattice polytopes in $\mathbb{R}^n$. These functions form a basis of the space of unimodular invariant valuations. We show that, in even dimensions, these functions are in fact simultaneous symplectic Hecke eigenfunctions. We leverage this and apply the theory of spherical functions and their associated zeta functions to prove analytic, asymptotic, and combinatorial results about the arithmetic functions averaging $\ell$th Ehrhart coefficients.
format Preprint
id arxiv_https___arxiv_org_abs_2507_11728
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Symplectic Hecke eigenbases from Ehrhart polynomials
Alfes, Claudia
Maglione, Joshua
Voll, Christopher
Combinatorics
Group Theory
Number Theory
20C08, 52B20, 43A90, 05A15, 11M41
For $n\in\mathbb{N}$ and $\ell\in\{0,1,\dots,n\}$, we consider the function extracting the $\ell$th coefficient of the Ehrhart polynomials of lattice polytopes in $\mathbb{R}^n$. These functions form a basis of the space of unimodular invariant valuations. We show that, in even dimensions, these functions are in fact simultaneous symplectic Hecke eigenfunctions. We leverage this and apply the theory of spherical functions and their associated zeta functions to prove analytic, asymptotic, and combinatorial results about the arithmetic functions averaging $\ell$th Ehrhart coefficients.
title Symplectic Hecke eigenbases from Ehrhart polynomials
topic Combinatorics
Group Theory
Number Theory
20C08, 52B20, 43A90, 05A15, 11M41
url https://arxiv.org/abs/2507.11728