Seminarium
Evenemanget har passerat

Operator Algebra Seminar

Jakub Curda, University of Oxford: C*-superrigidity of virtually abelian groups and Cartan subalgebras

Översikt

Evenemanget har passerat
  • Datum:Startar 9 April 2026, 15:00Slutar 9 April 2026, 16:00
  • Plats:
    MV:L15, Chalmers tvärgata 3
  • Språk:Engelska

Abstrakt finns enbart på engelska: This talk is motivated by the question of C*-superrigidity for discrete groups: a group is called C*-superrigid if it can be completely recovered from its group C*-algebra. It is an open question whether every torsion free group is C*-superrigid. In this talk I will be considering the class of virtually abelian groups, some of which also turn out to be C*-superrigid. One approach to proving C*-superrigidity is through the study of Cartan subalgebras. I will discuss this approach and provide a complete classification of Cartan subalgebras in the C*-algebra of the fundamental group of the Klein bottle. This talk is in part based on joint work with S. Knudby, S. Raum, H. Thiel and S. White.

Hannes Thiel
  • Professor (N1), Analys och sannolikhetsteori, Matematiska vetenskaper