Speaker: Valerio Proietti (Copenhagen Univ.)
Title: Index theory on the Mishchenko bundle
Time/Date: 4:45-6:15pm, Monday, February 14, 2018.
Abstract: We'll take a new look at the assembly map for a discrete torsion-free group and give a new and completely K-theoretic proof of the L2-index theorem of Atiyah. Key ingredients will be the HNN-extension groups and a generalized Chern character for function algebras. Joint work with Jens Kaad.