October 9, 2014
3:00 pm
-
4:00 pm
CH 240
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2014-10-09 15:00:00
2014-10-09 16:00:00
Geometric Group Theory Seminar - Bena Tshishiku
Title: Point-Pushing and Nielsen RealizationSpeaker: Bena Tshishiku, University of ChicagoAbstract: Let M be a manifold with mapping class group Mod(M). Any subgroup G < Mod(M) can be represented by a collection of diffeomorphisms that form a group up to isotopy. The Nielsen realization problem asks whether or not G can be represented as an honest subgroup of diffeomorphisms. We will discuss a special case of this problem when M is a locally symmetric manifold and G ≃ π1(M) is the "point-pushing" subgroup. This generalizes work of Bestvina-Church-Souto.
CH 240
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America/New_York
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Date Range
2014-10-09 15:00:00
2014-10-09 16:00:00
Geometric Group Theory Seminar - Bena Tshishiku
Title: Point-Pushing and Nielsen RealizationSpeaker: Bena Tshishiku, University of ChicagoAbstract: Let M be a manifold with mapping class group Mod(M). Any subgroup G < Mod(M) can be represented by a collection of diffeomorphisms that form a group up to isotopy. The Nielsen realization problem asks whether or not G can be represented as an honest subgroup of diffeomorphisms. We will discuss a special case of this problem when M is a locally symmetric manifold and G ≃ π1(M) is the "point-pushing" subgroup. This generalizes work of Bestvina-Church-Souto.
CH 240
America/New_York
public
Title: Point-Pushing and Nielsen Realization
Speaker: Bena Tshishiku, University of Chicago
Abstract: Let M be a manifold with mapping class group Mod(M). Any subgroup G < Mod(M) can be represented by a collection of diffeomorphisms that form a group up to isotopy. The Nielsen realization problem asks whether or not G can be represented as an honest subgroup of diffeomorphisms. We will discuss a special case of this problem when M is a locally symmetric manifold and G ≃ π1(M) is the "point-pushing" subgroup. This generalizes work of Bestvina-Church-Souto.
