Texas A&M University, Department of Mathematics, 216 Milner Hall, 7th of February 2007, 3:00-3:50

Groups and Dynamics Seminar


Limit spaces and C*-algebras

Volodymyr Nekrashevych of Texas A&M University

We will show how to reconstruct the limit space of a contracting self-similar group (e.g. the Julia set of a post-critically finite rational function) from the gauge action of the circle on the associated Cuntz-Pimsner algebra. We will also discuss relation of  the Cuntz-Pimsner algebras with the Ruelle algebras of the limit solenoids.