Geometry Seminar
Date: November 19, 2021
Time: 4:00PM - 5:00PM
Location: zoom
Speaker: Gleb Smirnov, ETH, Zurich
Title: Symplectic mapping class groups of K3 surfaces
Abstract: I will briefly introduce symplectic mapping class groups and explain how to use Seiberg-Witten theory to get information about them. In particular, I will prove that the symplectic mapping class groups of many K3 surfaces are infinitely generated, thus extending a recent result of Sheridan and Smith. Time permitting, we will also discuss the elliptic version of the story, where K3 is replaced with a blow-up of the complex torus.