The Albanese morphism for hyperelliptic varieties

Fuente: arXiv
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Main Authors: Belmans, Pieter, Demleitner, Andreas, Núñez, Pedro
Format: Preprint
Published: 2024
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author Belmans, Pieter
Demleitner, Andreas
Núñez, Pedro
author_facet Belmans, Pieter
Demleitner, Andreas
Núñez, Pedro
contents We explicitly describe the Albanese morphism of a hyperelliptic variety, i.e., the quotient $X$ of an abelian variety $A$ by a finite group $G$ acting freely and not only by translations, by giving a description of the Albanese variety and the Albanese fibers in terms of $A$ and $G$. In particular, the fibers are themselves abelian or hyperelliptic varieties, and we investigate which can occur in explicit examples. As an application we show that the derived category of $X$ is indecomposable in certain cases.
format Preprint
id arxiv_https___arxiv_org_abs_2411_14814
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The Albanese morphism for hyperelliptic varieties
Belmans, Pieter
Demleitner, Andreas
Núñez, Pedro
Algebraic Geometry
We explicitly describe the Albanese morphism of a hyperelliptic variety, i.e., the quotient $X$ of an abelian variety $A$ by a finite group $G$ acting freely and not only by translations, by giving a description of the Albanese variety and the Albanese fibers in terms of $A$ and $G$. In particular, the fibers are themselves abelian or hyperelliptic varieties, and we investigate which can occur in explicit examples. As an application we show that the derived category of $X$ is indecomposable in certain cases.
title The Albanese morphism for hyperelliptic varieties
topic Algebraic Geometry
url https://arxiv.org/abs/2411.14814