Schedule for the Ring-Lectures of the summer semester 2019::

Date	Time	Speaker	Title
Thursday, April 4 at BUW	14:00-15:30	Markus Reineke	Geometric Invariant Theory
Thursday, April 11 at BUW	14:00-15:30	Markus Reineke	Geometric Invariant Theory
Thursday, April 18 at HHU	13:30-15:00	Marcus Zibrowius	(Co)limits and homotopy (co)limits
Thursday, April 25 at HHU	13:30-15:00	Marcus Zibrowius	(Co)limits and homotopy (co)limits
Thursday, May 2 at BUW	14:00-15:30	Sascha Orlik	Étale (l-adic) Cohomology
Felix-Klein-Kolloquium Thursday, May 9 at HHU, Lecture hall 5F	15:00-16:00 16:30-17:30	Michel Brion (Université Grenoble Alpes) Clara Löh (Universität Regensburg)	Automorphism groups of projective algebraic varieties The spectrum of simplicial volume: from groups to manifolds
Thursday, May 16 at BUW	14:00-15:30	Sascha Orlik	Étale (l-adic) Cohomology
Thursday, May 23 at BUW	14:00-15:30	Britta Späth	Applications of the étale cohomology to the representation theory of finite groups of Lie-type
Thursday, June 13 at HHU	13:30-15:00	Stefan Schröer	Del Pezzo surfaces and Fano varieties
Thursday, June 27 at HHU	13:30-15:00	Stefan Schröer	Del Pezzo surfaces and Fano varieties
Thursday, July 4 at BUW	14:00-15:30	Jens Hornbostel	Algebraic K-theory
Thursday, July 11 at BUW	14:00-15:30	Jens Hornbostel	Algebraic K-theory

Archive of the GRK lectures:

• Special Lecture course Brauer groups in algebra and geometry by Stefan Schröer in the winter semester 2022/23.

• Ring Lecture summer semester 2022.

• Special Lecture course Representation Growth by Benjamin Klopsch in the winter semester 2021/22.

• Ring Lecture summer semester 2021.

• Ring Lecture winter semester 2020/21.

• Ring Lecture summer semester 2020.

• Special Lecture course From Chow groups to motivic homotopy theory by Jens Hornbostel in the winter semester 2019/20.

• Ring Lecture summer semester 2019.

• Special Lecture course Singularities, Monodromy, and Zeta Functions by Immanuel Halupczok in the winter semester 2018/19.