The period-index problem is a longstanding problem in the theory of Brauer groups, which asks how the size of a division algebra is constrained by its order in the Brauer group. I will discuss a solution to the problem for Brauer groups of abelian threefolds, based on methods from derived categories, Hodge theory, and enumerative geometry. I will also describe the analogue of the problem for complex tori. Based in part on joint work with Alex Perry.
Brauer groups of abelian varieties and complex tori
Please note this event occurred in the past.
October 06, 2023 4:00 pm - 4:00 pm ET