### The profinite topology on a group

- Series
- Geometry Topology Seminar Pre-talk
- Time
- Monday, February 6, 2023 - 12:30 for 1 hour (actually 50 minutes)
- Location
- Speaker
- Tam Cheetham-West – Rice University – tcw@rice.edu

The finite index subgroups of a finitely presented group generate a topology on the group. We will discuss using examples how this relates to the organization of a group's finite quotients, and introduce the ideas of profinite rigidity and flexibility.