Virtual Seminar on 

Geometry and Topology

https://sites.google.com/view/visgat

Organizers

Hyungryul Baik (KAIST),
Sang-hyun Kim, Sanghoon Kwak, Javier de la Nuez-González, Carl-Fredrik Nyberg-Brodda (KIAS)

How to join

Zoom https://kimsh.kr/vz

Meeting ID: 822 3235 0014

Passcode: 7998

Time Generally, Tuesdays or Thursdays 11 am KST

Length is typically for one-hour unless noted otherwise, although it's often extended by questions etc.

Mailing list Please contact one of the organizers to subscribe.

Google calendar subscribe to visgat google caldender to automatically add the upcoming seminars to yours! 

2024

October 29th 2024, 4 pm - 5 pm (Online)

Zoom https://kimsh.kr/vz

Richard Wade  (Oxford University)
Title:  Mapping class groups of handlebodies and Bieri-Eckmann duality

Abstract: I will give a short overview of mapping class groups of handlebodies with a particular focus on their relationship to mapping class groups of surfaces and outer automorphism groups of free groups. I will then discuss Bieri-Eckmann duality for discrete groups, Harer's proof that the mapping class group is a virtual duality group, and give a sketch of a proof due to Dan Petersen and myself that handlebody mapping class groups are virtual duality groups.

Organizers

Hyungryul Baik (KAIST)

Sang-hyun Kim, Sanghoon Kwak, Javier de la Nuez-González, Carl-Fredrik Nyberg-Brodda (KIAS)


Mailing list

Click to subscribe 

(please include name/institution)