English

Two results on the Hodge structure of complex tori

Algebraic Geometry 2021-06-22 v1

Abstract

We prove two results regarding Hodge structures appearing in the cohomology of complex tori. First, we prove that if a polarizable Hodge structure appears in the cohomology of a complex torus TT, it appears in the cohomology of an abelian variety isomorphic to a subquotient of TT. Second, we prove a universality result for the Kuga-Satake construction applied to Hodge structures of K3K3 type that might not be polarized.

Keywords

Cite

@article{arxiv.2106.11069,
  title  = {Two results on the Hodge structure of complex tori},
  author = {François Charles},
  journal= {arXiv preprint arXiv:2106.11069},
  year   = {2021}
}

Comments

18 pages, comments welcome