Time:  12:00  13:20 
Room: 
PPB 300 (next to Facilities Management Services)

Speaker: 
Paul McKenney CMU 
Title: 
Cstar algebras and set theory V

Abstract: 
We will continue our construction of an outer automorphism of the Calkin algebra, on a separable Hilbert space, under the assumption of CH. Time permitted, we will also sketch a proof showing that, under the assumption of TA + MA, every automorphism of the Calkin algebra on a Hilbert space of dimension aleph_1 is inner. 