## Arithmetic Geometry and Number Theory RTG Seminar: The Brauer group of some algebraic stacks

Seminar | January 22 | 3:10-5 p.m. | 748 Evans Hall | Note change in date

Minseon Shin, UC Berkeley

Department of Mathematics

We will discuss recent developments in the computation of Brauer groups of some algebraic stacks, namely the moduli stack of elliptic curves $\mathscr M_{1,1}$ and torsion $\mathbb G_m$-gerbes.

Seminar Format: The seminar consists of two 50-minute talks, a pre-talk (3:10-4:00) and an advanced talk (4:10-5:00), with a 10-minute break (4:00-4:10) between them. The advanced talk is a regular formal presentation about recent research results to general audiences in arithmetic geometry and number theory; the pre-talk (3:10-4:00) is to introduce some prerequisites or background for the advanced talk to audiences consisting of graduate students.

yxy@berkeley.edu