Counting Lattices with Local Hecke Series

Fuente: arXiv
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Main Authors: Bhowmik, Gautami, Tsuzuki, Masao
Format: Preprint
Published: 2025
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author Bhowmik, Gautami
Tsuzuki, Masao
author_facet Bhowmik, Gautami
Tsuzuki, Masao
contents We count the maximal lattices over $p$-adic fields and the rational number field. For this, we use the theory of Hecke series for a reductive group over nonarchimedean local fields, which was developed by Andrianov and Hina-Sugano. By treating the Euler factors of the counting Dirichlet series for lattices, we obtain zeta functions of classical groups, which were earlier studied with $p$-adic cone integrals. When our counting series equals the existing zeta functions of groups, we recover the known results in a simple way. Further we obtain some new zeta functions for non-split even orthogonal and odd orthogonal groups.
format Preprint
id arxiv_https___arxiv_org_abs_2512_24690
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Counting Lattices with Local Hecke Series
Bhowmik, Gautami
Tsuzuki, Masao
Number Theory
primary 11M41, secondary 11E45, 11E57, 11N45, 20D30
We count the maximal lattices over $p$-adic fields and the rational number field. For this, we use the theory of Hecke series for a reductive group over nonarchimedean local fields, which was developed by Andrianov and Hina-Sugano. By treating the Euler factors of the counting Dirichlet series for lattices, we obtain zeta functions of classical groups, which were earlier studied with $p$-adic cone integrals. When our counting series equals the existing zeta functions of groups, we recover the known results in a simple way. Further we obtain some new zeta functions for non-split even orthogonal and odd orthogonal groups.
title Counting Lattices with Local Hecke Series
topic Number Theory
primary 11M41, secondary 11E45, 11E57, 11N45, 20D30
url https://arxiv.org/abs/2512.24690