English

Smooth quotients of abelian varieties by finite groups

Algebraic Geometry 2021-05-26 v4

Abstract

We give a complete classification of smooth quotients of abelian varieties by finite groups that fix the origin. In the particular case where the action of the group GG on the tangent space at the origin of the abelian variety AA is irreducible, we prove that AA is isomorphic to the self-product of an elliptic curve and A/GPnA/G\simeq \mathbb P^n. In the general case, assuming dim(AG)=0\dim(A^G)=0, we prove that A/GA/G is isomorphic to a direct product of projective spaces.

Keywords

Cite

@article{arxiv.1801.00028,
  title  = {Smooth quotients of abelian varieties by finite groups},
  author = {Robert Auffarth and Giancarlo Lucchini Arteche},
  journal= {arXiv preprint arXiv:1801.00028},
  year   = {2021}
}

Comments

23 pages. V4: Erased the sections with applications in order to lighten the article. These will be improved and published independently