English

Hodge structures on abelian varieties of type III

Algebraic Geometry 2007-05-23 v1 Group Theory

Abstract

We show that the usual Hodge conjecture implies the general Hodge conjecture for certain abelian varieties of type III, and use this to deduce the general Hodge conjecture for all powers of certain 4-dimensional abelian varieties of type III. We also show the existence of a Hodge structure M such that M occurs in the cohomology of an abelian variety, but the Tate twist M(1) does not occur in the cohomology of any abelian variety, even though it is effective.

Keywords

Cite

@article{arxiv.math/0410024,
  title  = {Hodge structures on abelian varieties of type III},
  author = {Salman Abdulali},
  journal= {arXiv preprint arXiv:math/0410024},
  year   = {2007}
}

Comments

14 pages, published version

R2 v1 2026-07-22T17:10:33.480Z