The second bounded cohomology of groups acting on CAT(0) cube complexes

Indira Chatterji (U Orleans)

Wednesday 31st October, 2012 16:00-17:00 516


I will discuss bounded cohomology, as well as CAT(0) cube complexes. In joint work with T. Fernos and A. Iozzi, we prove the non-vanishing of the second bounded cohomology of a group with a non-elementary action on a CAT(0) cube complex, and we apply this result to establish a super-rigidity result.

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