Workshop C*-algebras and geometry of semigroups and groups

On May 2-May 6, 2022 we organise a workshop on the the geometry of C*-algebras associated with groups and semigroups. The workshop is hosted at the university of Oslo. The aim of the workshop is to present recent advances at the boundary of these fields with the potential for cross-fertilization. The workshop takes place physically and will accommodate some online talks.

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Funding organisation


This workshop will bring together researchers working at the border of operator algebras and geometric or topological structures that comprise groups and semigroups.

The 5-day workshop is supported by the project "Pure Mathematics in Norway" (external link) of the Trond Mohn Foundation.

ORGANIZERS: Martijn Caspers (TU Delft), Nadia Larsen (University of Oslo), Sven Raum (Stockholm University)

Group photo.



May 2-6, 2022, Oslo. The workshop starts on Monday 2 May at 10:00 and finishes on Friday May 6 at 13:00. The workshop will take place on the campus of the University of Oslo at Blindern with some talks delivered online. Information about the schedule, including titles and abstracts of talks, can be found in this booklet. A map of the campus at Blindern shows the buildings in which the different auditoria are located (note that Kjemibygningen is the Chemistry building). We plan to make all talks available online for those speakers and participants who will not be physically present. A Zoom-link will be sent by email to all participants.


SPEAKERS: Isabelle Baraquin, Adrien le Boudec, Matthijs Borst, Chris Bruce, Antje Dabeler, Ulrik Enstad, Mario Klisse, Tim de Laat, Waltraud Lederle, Kang Li, Diego Martinez, Sam Mutter, Sergey Neshveyev, Piotr Nowak, Eduard Ortega, Sanaz Pooya, Mikael de la Salle, Eduardo Scarparo, Gaute Schwartz, Adam Skalski, Alain Valette, Alina Vdovina. 


Attendance is by invitation.


See this page for some practical information including travel.


Published Mar. 1, 2022 2:33 PM - Last modified May 4, 2022 4:31 PM