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# Operator Algebra and Noncommutative Geometry Seminar Series

## August 3, 2017 @ 11:30 am - 12:30 pm

##### Title

Cuntz-Pimsner algebras from subgroup correspondences.

##### Speaker

Professor Nadia S. Larsen (University of Oslo)

##### Abstract

For a closed subgroup of a locally compact group the Rieffel induction

process gives rise to a C*-correspondence over the C*-algebra of the subgroup.

We study the associated Cuntz-Pimsner algebra and show that, by varying the

subgroup to be open, compact, or discrete, there are connections with the ExelPardo

correspondence arising from a cocycle, and also with graph algebras. This

is joint work with S. Kaliszewski and J. Quigg.