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Bibliographic Details
Main Authors: Couveignes, Jean-Marc, Gasnier, Jean
Format: Preprint
Published: 2023
Subjects:
Online Access:https://arxiv.org/abs/2309.06754
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Table of Contents:
  • Let $\mathbf K$ be a finite field, $X$ and $Y$ two curves over $\mathbf K$, and $Y\rightarrow X$ an unramified abelian cover with Galois group $G$. Let $D$ be a divisor on $X$ and $E$ its pullback on $Y$. Under mild conditions the linear space associated with $E$ is a free ${\mathbf K}[G]$-module. We study the algorithmic aspects and applications of these modules.