Séminaire Géométrie Topologie Dynamique
Mapping class groups of handlebodies and Bieri-Eckmann duality
07
Nov. 2024
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Intervenant : Ric Wade
Institution : Oxford
Heure : 14h00 - 15h00
Lieu : 2L8

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.

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