© MM/Ralf Engbers

Workshop on the Bezrukavnikov equivalence

18 November 2022, Essen, Germany
16 December 2022, Münster, Germany
27 January 2023, Bonn, Germany

The Workshop is a joint activity of the Arithmetic Geometry research groups in Bonn, Essen and Münster and will take place at three Fridays in the coming term. The aim of the workshop is to understand the work of Roman Bezrukavnikov about an equivalence between certain constructible sheaves on an affine flag variety and certain coherent sheaves on a variety related to the Springer resolution of the nilpotent cone. It gives a categorification of work of Kazhdan and Lusztig on the realization of an affine Hecke algebra as the equivariant K-theory of an algebraic variety. 

Program (J. Lourenço, K. Zou)

The detailed program for the workshop can be found here. If you are interested in giving one of the talks, please write an email to e.hellmann@uni-muenster.de until October 30, 2022.


Johannes Anschütz (Bonn)
Ulrich Görtz (Essen)
Eugen Hellmann (Münster)
João Lourenco (Münster)
Konrad Zou (Bonn)


The workshop will take place as a hybrid workshop. It is possible to participate remotely using the following zoom-Link:


Meeting ID: 647 3266 6929
Passcode: Bezrukav


The schedule for the third meeting is:

10.30 - 11.30 h Talk 1: Strategy outline and monodromic sheaves (Konrad Zou, Bonn)
  coffe break
12.00 - 13.00 h Talk 2: Spectral action (Dennis Gaitgory, Bonn)
13.00 - 14.30 h lunch break
14.30 - 15.45 h

Talk 3: Extending from perfect complexes to coherent sheaves (João Lourenço, Münster)

  coffe break
16.00 - 17.00 h Talk 4: Monoidality and DG categories (Peter Scholze, Bonn)


If you would like to take part in the conference please register here

Venue and Travel Information

The workshop will take place on three different days at three different venues (in Essen, Münster respectively Bonn).

The talks of the third meeting take place in the Lipschitz-Saal, Mathematisches Institut, Endenicher Allee 60, 53115 Bonn.




The conference is supported by the Cluster of Excellence Mathematics Münster , the CRC 1442 Geometry: Deformations and Rigidity and the RTG 2553 Symmetries and classifying spaces: Analytic, arithmetic and derived.