2009-03-27

Martin Kassabov, Cornell University

Property T for discrete groups of type ${}^2F_4$.

I will describe construction of Steinberg groups, and will focus on several twisted examples which do not appear as a lattices in Lie groups over R or C. I will finish with a recent result of M.Ershov, A. Jaikin and myself about the representation theory of these groups, but it is unlikely that I will have time to outline the ideas of the proof.