Mathematical Institute

Tue, 04 Nov 2025
16:00

Cuntz-Pimsner algebras of homeomorphisms twisted by vector bundles

Aaron Kettner

(Institute of Mathematics, Czech Academy of Sciences)

Abstract

In this talk, Aaron Kettner, Institute of Mathematics, Czech Academy of Sciences, will show how to construct a C*-correspondence from a vector bundle together with a (partial) homeomorphism on the bundle's base space. The associated Cuntz-Pimsner algebras provide a class of examples that is both tractable and potentially quite large. Under reasonable assumptions, these algebras are classifiable in the sense of the Elliott program. If time permits, Aaron will sketch some K-theory calculations, which are work in progress.

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