GRK special lecture course (GRK-Spezialvorlesung) during the winter semester 2021/22:

This semester's special lecture course on “Geometric Methods in Asymptotic Group Theory: Representation Growth” will be run by Benjamin Klopsch. All relevant details, related materials and day-to-day updates can be found at the dedicated website.

The lectures will take place at the HHU in Lecture Hall 5E (Building 25.22) on Thursdays, from 14:30 to 16:00. On selected dates there are alternative activities of the GRK; see the timetable below.

Schedule for the special lecture course of the winter semester 2021/22:

Date	Time	Speaker	Topic		Room (at HHU)
14.10.21	14:30-16.00	Benjamin Klopsch	Representation Growth		25.22, HS 5E
21.10.21	14:30-16.00	Benjamin Klopsch	Representation Growth		25.22, HS 5E
04.11.21	14:30-15:15	Christian Haesemeyer (Melbourne)	Pre-Talk Christian Haesemeyer		25.22, HS 5E
	15:15-16:00	Thomas Geisser (Tokyo)	Pre-Talk Thomas Geisser
	16:00-16:30		Coffee break
	16:30-17:30	Thomas Geisser (Tokyo)	Class field theory of schemes over local fields
	17:40-18:40	Christian Haesemeyer (Melbourne)	Sheaves of (infinity) t-categories and local t-structures on schemes
	Afterwards		Nachsitzung		TBA
11.11.21	14:30-16.00	Benjamin Klopsch	Representation Growth		25.22, HS 5E
18.11.21	14:30-16.00	Benjamin Klopsch	Representation Growth		25.22, HS 5E
25.11.21	14:30-16.00	Benjamin Klopsch	Representation Growth		25.22, HS 5E
02.12.21	14:30-16.00	Benjamin Klopsch	Representation Growth		25.22, HS 5E
09.12.21	15:00-16.00	Boris Okun (Wisconsin)	Homology growth of right-angled Artin groups		25.22, HS 5E
16.12.21	14:30-16.00	Benjamin Klopsch	Representation Growth		25.22, HS 5E
06.01.22	14:30-16.00	Benjamin Klopsch	Representation Growth		25.22, HS 5E
13.01.22	14:30-16.00	Benjamin Klopsch	Representation Growth		25.22, HS 5E
20.01.22	14:30-16.00	Benjamin Klopsch	Representation Growth		25.22, HS 5E

Legend:

Special Lecture Course

Guest talks

List of all GRK lectures up to now:

• 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.