Bounded cohomology and quasi-homomorphisms
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Tue, 08/06/2010 16:00 |
Richard Wade (Oxford) |
Junior Geometric Group Theory Seminar  |
DH 3rd floor SR |
| Starting from a definition of the cohomology of a group, we will define the bounded cohomology of a group. We will then show how quasi-homomorphisms lead to cocycles in the second bounded cohomology group, and use this to look at the second bounded cohomology of some of our favourite groups. If time permits we will end with some applications. | |||