CANCELED TALK
The groups of KK-theory were introduced by Kasparov in the 1980’s and have important applications to many geometric and topological problems which are tackled by C*-algebraic techniques. Kasparov groups provide for instance a framework to understand and conceptualise the proofs of index theorems.
We investigate KK-theory groups with coefficients in the $\mathbb{R}$. By construction, they provide natural receptacles for classes coming from traces on $C^*$ algebras. We shall see their applications to R/Z-secondary classes of flat bundles and to assembly maps. Based on joint works with Paolo Antonini and Georges Skandalis.
The talk will be given on Zoom. Please, contact the organizers for more information.