Workshop of the GRK 2240:
Welcome on the homepage for the Workshop of the GRK 2240. For more informations and activities of the former common AG DüsseldorfWuppertal: Algebra and Geometry see
webpage. Here can you find the program for the winter semester 2018/19. The talks given at HHU are in the seminar room 25.22.03.73 and the talks given
at BUW are in lecture hall HS7. We would like to point out that from this semester the
(Ring)Lecture is already at 13:30/14:00 at HHU/BUW. The Workshop of the
GRK2240 then starts at 15:30/16:00 at HHU/BUW.
The topic for the summer semester 2019 is Inverse Galois problem over C(t) and étale fundamental groups.
Here is the → detailed program
Schedule for summer semester 2019:
Date  Time  Speaker  Title 
Thursday, April 4 at BUW  16:0017:00
17:1518:15 
Damiano Rossi
Djurre Tijsma 
Basics and preliminaries
Galois covers of topological spaces 
Thursday, April 11 at BUW  16:0018:15

N.N

Meeting of the PhD students and postdocs (no professors!)

Thursday, April 18 at HHU  15:3016:30
16:4517:45 
Arthur Martirosian
Immanuel Halupczok 
Riemann surfaces and examples
Coverings of Riemann surfaces and field theory 
Thursday, April 25 at HHU  15:3017:45

N.N

Meeting of the PhD students and postdocs (no professors!)

Thursday, May 2 at BUW  16:0017:00
17:1518:15 
Matteo Vannacci
Fabian Korthauer 
The absolute Galois group of C(t)
Galois theory for finite étale covers 
FelixKleinKolloquium Thursday, May 9 at HHU Lecture hall 5F  15:0016:00
16:3017:30 
Michel Brion
Clara Löh 
Automorphism groups of projective algebraic varieties
The spectrum of simplicial volume: from groups to manifolds 
Thursday, May 16 at BUW  16:0018:15

N.N

Meeting of the PhD students and postdocs (no professors!)

Thursday, May 23 at BUW  16:0017:00
17:1518:15 
Kevin Langlois
Herman Rohrbach 
Étale fundamental groups of schemes
Examples of étale fundamental groups 
Thursday, June 6 at HHU  15:3017:45

N.N

Meeting of the PhD students and postdocs (no professors!)

Thursday, June 13 at HHU  15:3016:30
16:4517:45 
Yingying Wang
Thuong Dang 
An application: the inverse Galois problem over Q
The homotopy exact sequence and applications 
Thursday, June 27 at HHU  15:3017:45

N.N

Meeting of the PhD students and postdocs (no professors!)

Thursday, July 4 at BUW  16:0017:00
17:1518:15 
Timo Richarz (TU Darmstadt)
Markus Reineke 
Geometry in the reduction modulo p of Shimura varieties
GromovWitten invariants and topology of moduli spaces 
Thursday, July 11 at BUW  16:0017:00
17:1518:15 
Roman Fedorov

A conjecture of Grothendieck and Serre on principal bundles in mixed
characteristic
Program discussion 