Structure and Approximation of C*-algebras

Date: 21. – 25. July 2025 (Monday – Friday)

Venue: Palacio de la Magdalena, Santander, Spain.

Schedule: Download here

Reading list: Suggestions for preparatory reading

Courses:

• Tatiana Shulman (Chalmers University of Technology and University of Gothenburg, SWEDEN): Group stability and approximation problems in C*-algebras.

• Pere Ara (Universitat Autònoma de Barcelona and Centre de Recerca Matemàtica - CRM): Introduction to separated graph C*-algebras - First version of lecture notes

• Leonel Robert (Louisiana University, USA): Introduction to Cuntz semigroups.

• Andrea Vaccaro (Münster University, GERMANY): Model theory and C*-algebras - Lecture notes

Additional talks by: 

• Shirly Geffen, (Münster University, GERMANY)

• Eusebio Gardella (Chalmers University of Technology and University of Gothenburg, SWEDEN)

• Stuart White, (Oxford University, UK)

• Eduard Vilalta (Chalmers University of Technology and University of Gothenburg, SWEDEN): The Global Glimm Problem - Download slides

Link to UIMP website: XXIV School of Mathematics «Lluis Santaló». Structure and Approximation in C*-Algebras

About the summer school: The theory of operator algebras is a hybrid field initiated in the 1930s by John von Neumann motivated by profound questions in ergodic theory, group representations, and quantum mechanics. It is remarkable that these motivations not only came to spectacular fruition but also continue to provide inspiration for present day research in these areas.

The school will focus on new trends in the structure and approximation theory of C*-algebras. These topics will be presented in four courses. Additionally, there will be contributed talks by participants in the afternoon. . The school aims to train national and international Ph.D. students, as well as young researchers with interdisciplinary interests in mathematics.

Contact: Please write to oa.santander.2025 [AT] gmail.com to contact the organizing team. 

Organizers:

• Fernando Lledó (Universidad Carlos III de Madrid and Insitituto de Ciencias Matemáticas - ICMAT)

• Francesc Perera (Universitat Autònoma de Barcelona and Centre de Recerca Matemàtica - CRM)

• Hannes Thiel (Chalmers University of Technology and University of Gothenburg)