Algebra Seminar

Title: Rigidity of groups of diffeomorphisms
Speaker: Sebastian Hurtado-Salazar
Speaker Info:
Brief Description:
Special Note:

Let Diff_0(M) be the group of diffeomorphisms isotopic to the identity of a closed manifold M. I'll talk about the structure of Diff_0(M) as an abstract group.

For example, Diff_0(M) is a simple group. Also, if Diff_0(M) and Diff_0(N) are isomorphic as abstract groups then M and N are diffeomorphic. I'll talk about these old theorems, about the concept of distortion in geometric group theory and about how this concept helps to show that any homomorphism P : Diff_0(M) --->DIff_0(N) is in fact continuous.

Date: Tuesday, December 10, 2013
Time: 12:00pm
Where: Linguistics Department Seminar Room (2016 Sheridan Road)
Contact Person: Nir Avni
Contact email:
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