Workshop `Cuntz semigroups‘ 2021

The Cuntz semigroup is a geometric refinement of K-theory that was introduced by Cuntz in the 1970s in his pioneering work on the structure of simple C*-algebras. This powerful invariant has seen many applications in the structure and classification theory of C*-algebras. Recently, it has also become clear that Cuntz semigroups are interesting objects of study in their own right.

This workshop will bring together researchers that are interested in the different aspects of Cuntz semigroups in areas such as C*-algebras, dynamical systems, and model theory.

Date: 12. – 16. July 2021

This workshop is part of the Focus Programme Operator algebras and topological dynamics: amenability and beyond, which was originally planned for June-August 2020 but was postponed to 2021 due to the Corona pandemic.

The talks will be between 15:00 and 18:00 from Monday to Friday. The workshop dinner is on Wednesday (14. July) at 20:00 in the restaurant Kleiner Kiepenkerl.

Organizers: Eusebio Gardella (University of Münster) & Hannes Thiel (TU Dresden)


  • Ramon Antoine (Barcelona)
  • M. Ali Asadi-Vasfi (Prague)
  • Tristan Bice (Prague)
  • Joan Bosa (Barcelona)
  • Bruno Braga (Charlottesville)
  • Laurent Cantier (Barcelona)
  • Jorge Castillejos (Warsaw/Madrid)
  • George Elliott (Toronto)
  • Ilijas Farah (Toronto)
  • Jamie Gabe (Odense)
  • Eusebio Gardella (Münster)
  • Shirly Geffen (Be’er Scheva/Münster)
  • Saeed Ghasemi (Prague)
  • Bhishan Jacelon (Prague)
  • Tomasz Kania (Prague)
  • Kang Li (Leuven)
  • Francesc Perera (Barcelona)
  • N. Christopher Phillips (Oregon)
  • Leonel Robert (Louisiana)
  • Hannes Thiel (Dresden)
  • Aaron Tikuisis (Ottawa)
  • Eduard Vilalta (Barcelona)
  • Wilhelm Winter (Münster)
  • Joachim Zacharias (Glasgow)

Please contact one of the organizers if you are interested in participating in this workshop.