On the homology of Torelli groups

Series
Geometry Topology Seminar
Time
Monday, January 23, 2023 - 2:00pm for 1 hour (actually 50 minutes)
Location
Skiles 006
Speaker
Dan Minahan – Georgia Institute of Technology
Organizer
Dan Margalit

The Torelli group of a surface is a natural yet mysterious subgroup of the mapping class group.  We will discuss a few recent results about finiteness properties of the Torelli group, as well as a result about the cohomological dimension of the Johnson filtration.