26.04.2024, 15:00
– 2.09.0.14
Forschungsseminar: Gruppen und Operatoralgebren
Properties of affine cellular algebras
Christian Lomp (University of Porto)
Francesca Arici (MPI Leipzig)
In this talk I will recall how Pimsner algebras of self-Morita equivalences can be thought of as total spaces of quantum circle bundles, and the associated six term exact sequence in K-theory can be interpreted as an operator algebraic version of the classical Gysin sequence for circle bundles. After reviewing some results in this direction, I will report on work in progress concerning the construction of higher dimensional classical and quantum sphere bundles in terms of Cuntz-Pimsner algebras of sub-product systems.