Dr. Indrava Roy (Chennai):
Higson-Roe exact sequence and secondary \(\bell^2\)-invariants
Time and place
Wednesday, 28.9.16, 13:45-14:45, Raum 125, Eckerstr. 1
Abstract
In this talk we give an overview of the Higson-Roe exact sequence for\ndiscrete groups, also known as the analytic surgery sequence, and explain its\nrelation with secondary invariants of type rho. Using the machinery of\nequivariant Roe-algebras we shall also outline a proof of some rigidity results\nof \(\bell^2\)-rho-invariants, generalizing earlier work of Higson and Roe. This\nis joint work with M.-T. Benameur.\n