Hausdorff School: "Noncommutative Geometry and Operator Algebras"

Date: May 2 – May 5, 2023

Venue: Lipschitzsaal, Endenicher Allee 60, Bonn

Organizers: Francesca Arici (Leiden University), Joakim Arnlind (Linköping University), Sven Raum (Stockholm University/University of Potsdam), Koen van den Dungen (University of Bonn)


Noncommutative Geometry (NCG) is a broad area of mathematics connected to a variety of topics, which can be a challenging situation for early career researchers in the field. This Hausdorff School (part of the NSeaG2023 meeting in Bonn) will address this need and introduce participants to a selection of active research topics through mini-courses, notably on unbounded KK-theory and spectral triples, the Baum—Connes conjecture, quantum groups, and quantum metric spaces. An in-depth introduction, leading up to state-of-the-art knowledge in these lines of research will be provided.

Lecture series by:

  • Bram Mesland (Leiden University): Unbounded KK-theory & Spectral triples
  • Nigel Higson (Penn State University): BaumConnes conjecture
  • Christian Voigt (University of Glasglow): Quantum groups
  • Frédéric Latrémolière (University of Denver): Quantum metric spaces

The University of Bonn and HSM are committed to diversity and equal opportunity. We aim to increase the proportion of women in areas where women are underrepresented and to facilitate their careers. We therefore strongly encourage women with relevant qualifications to apply.


The due date for registration (along with requests for financial support) has expired. If you wish to attend this Hausdorff School at your own cost, please register with the organisers by sending an email (stating your name, institute, and period of stay) to kdungen(at)

In case of questions concerning services and administration, please contact hsm(at)


This Hausdorff School is part of the NSeaG2023 meeting, and will be followed by a workshop, continuing the series NSeaG — Noncommutative Geometry along the North Sea — started in spring 2022 at the Lorentz Center.

Workshop: Noncommutative Geometry and Operator Algebras (May 8- May 12,2023)

The NSeaG2023 workshop continues the series NSeaG — Noncommutative Geometry along the North Sea — started in spring 2022 at the Lorentz Center. The workshop will provide a platform for the exchange of new ideas and discussion of recent developments for researchers in noncommutative geometry (NCG) and neighbouring topics. Its geographic focus on activities along the North Sea supports community building in this area.

If you are also interested in participating in this event, please indicate this in your application process.