Finiteness Properties of Asymptotic Mapping Class Groups
Time: 2022-10-10
Published By: Meng Yu
Speaker(s): Xiaolei Wu (Fudan University)
Time: 15:00-16:00 October 14, 2022
Venue: Online
Tencent: 522-848-241
Password: 221014
Abstract: Asymptotic mapping class groups was introduced by Funar and Kapoudjian. They can be treated as a generalization of the Thompson groups in the mapping class group setting. We will discuss how these groups are constructed and show that they are in fact of type F_infinity. The proof boils down to prove certain subsurface complexes are highly connected. This is based on joint work with Javier Aramayona, Kai-Uwe Bux, Jonas Flechsig and Nansen Petrosyan.