English

Brauer groups and Neron class groups

Number Theory 2020-03-10 v2 Algebraic Geometry

Abstract

Let K be a global field, let S be a finite set of primes of K containing the archimedean primes and let A be an abelian variety over K. We generalize the duality theorem established in our paper "On Neron class groups of abelian varieties" by removing the hypothesis in [op.cit.] that the Tate-Shafarevich group of A is finite. We also derive an exact sequence that relates the indicated group associated to the Jacobian variety of a proper, smooth and geometrically connected curve X over K to a certain finite subquotient of the Brauer group of X. The sequence alluded to above may be regarded as a global analog of an exact sequence of S.Biswas.

Keywords

Cite

@article{arxiv.1909.03125,
  title  = {Brauer groups and Neron class groups},
  author = {Cristian D. Gonzalez-Aviles},
  journal= {arXiv preprint arXiv:1909.03125},
  year   = {2020}
}

Comments

18 pages. Revised version after referee report

R2 v1 2026-06-23T11:08:15.199Z