Modules over orders, conjugacy classes of integral matrices, and abelian varieties over finite fields

Fuente: arXiv
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Auteur principal: Marseglia, Stefano
Format: Preprint
Publié: 2022
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author Marseglia, Stefano
author_facet Marseglia, Stefano
contents We give an algorithm to compute representatives of the conjugacy classes of semisimple square integral matrices with given minimal and characteristic polynomials. We also give an algorithm to compute the $\mathbb{F}_q$-isomorphism classes of abelian varieties over a finite field $\mathbb{F}_q$ which belong to an isogeny class determined by a characteristic polynomial $h$ of Frobenius when $h$ is ordinary, or $q$ is prime and $h$ has no real roots.
format Preprint
id arxiv_https___arxiv_org_abs_2208_05409
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Modules over orders, conjugacy classes of integral matrices, and abelian varieties over finite fields
Marseglia, Stefano
Number Theory
Rings and Algebras
16H20, 11Y40, 15B36, 14K15
We give an algorithm to compute representatives of the conjugacy classes of semisimple square integral matrices with given minimal and characteristic polynomials. We also give an algorithm to compute the $\mathbb{F}_q$-isomorphism classes of abelian varieties over a finite field $\mathbb{F}_q$ which belong to an isogeny class determined by a characteristic polynomial $h$ of Frobenius when $h$ is ordinary, or $q$ is prime and $h$ has no real roots.
title Modules over orders, conjugacy classes of integral matrices, and abelian varieties over finite fields
topic Number Theory
Rings and Algebras
16H20, 11Y40, 15B36, 14K15
url https://arxiv.org/abs/2208.05409