Classifying spaces, loop spaces and finiteness – University of Copenhagen


Workshop on

Classifying spaces, loop spaces and finiteness

October 14-18, 2013

Program:  The program of the workshop will consist of three lecture series:

  • Finiteness properties of arithmetic groups (Kai-Uwe Bux) NOTES: III
  • Examples of classifying spaces for proper actions (Ian Leary)
  • L^2-invariants for group theorists (Roman Sauer). SLIDES: I, II, and III.

In addition there will be individual research talks and time for discussion. The workshop will start Monday morning and end on Friday at noon.


  • Kai-Uwe Bux
  • Ramón Flores slides
  • Peter Kropholler
  • Ian Leary
  • Ran Levi notes
  • Alexandre Martin slides                                                                                  
  • Conchita Martínez-Pérez 
  • Roman Sauer
  • Nora Seeliger
  • Werner Thumann slides
  • Antonio Viruel
  • Stefan Witzel slides

Venue: Centre for Symmetry and Deformation, KU. For information how to get to the Department of Mathematical Sciences click here.

Schedule: A tentative schedule can be found here.

Abstracts: Titles and abstracts of the talks can be found here.

Participants: A list of participants can be found here.

Registration: registration is now closed. 

Accommodation: Participants are asked to book their own accommodation. We recommend Hotel 9 Små Hjem, which is pleasant and inexpensive and offers rooms with a kitchen. Other inexpensive alternatives are CabInn that has several locations in Copenhagen: the Hotel City (close to Tivoli), Hotel Scandivania (Frederiksberg, close to the lakes), and Hotel Express (Frederiksberg) are the most convenient locations; the latter two are 2.5-3 km from the math department. Somewhat more expensive - and still recommended - options are Hotel Nora and Ibsen's Hotel.

Organizers: Dieter Degrijse, John Foley, Giovanni Gandini