researchseminars.org

Wei Ho (University of Michigan)
2020-06-12 19:00 - 20:00 UTC | https://researchseminars.org/talk/agstanford/12/
Title: Splitting Brauer classes (https://researchseminars.org/talk/agstanford/12/)
by Wei Ho (University of Michigan) as part of Stanford algebraic geometry seminar

Abstract
Given a Brauer class over a field, what types of varieties split it? Or more geometrically, can we say anything about the varieties that map to a given Brauer-Severi variety? In this talk, we will discuss some open questions related to splitting Brauer classes. For example, we will review some classical algebro-geometric constructions that produce genus one curves splitting low index Brauer classes ((old) joint work with A.J. de Jong), and we will explain why a Brauer class of any index is split by a torsor under an abelian variety (joint work with M. Lieblich).

The discussion for Wei Ho’s talk is taking place not in zoom-chat, but at https://tinyurl.com/2020-06-12-wh (and will be deleted after 3-7 days).
