29 May 2020, 16:15-17:00 What is... a Coxeter group? Benjamin Brück will explain what a Coxeter group is.
25 May - 29 May 2020 Scissors congruence, then and now (Postponed to 2021) Masterclass. Postponed to early January. It will be confirmed in due course.
4 May 2020, 15:15-16:15 Algebra/Topology Seminar Speaker: Zhen Huan (Huazhong University of Science and Technology) Title: Quasi-elliptic cohomology and related problems
24 Apr. 2020, 16:15-17:00 What is... mean curvature flow? Felix Lubbe will explain what mean curvature flow in higher codimension is.
20 Apr. 2020, 15:15-16:15 Algebra/Topology seminar Speaker: Irakli Patchkoria (University of Aberdeen) Title: Equivariant Stallings-Swan theorem and cohomology of orbit categories
8 Apr. 2020, 16:15-17:00 What is... non-commutative geometry? Philipp Schmitt will explain what non-commutative geometry is.
27 Mar. 2020, 16:15-17:00 What is... a topological quantum field theory (TQFT)? Thomas Wasserman will explain what a topological quantum field theory (TQFT) is.
23 Mar. 2020, 15:15-16:15 Algebra/Topology Seminar - CANCELLED Speaker: Bruce Bartlett (Stellenbosch University)
16 Mar. 2020, 15:15-16:15 Algebra/Topology Seminar - CANCELLED Speaker: Julian Holstein (University of Hamburg) Title: Homotopy theory of monoids and localization
13 Mar. 2020, 13:15-14:15 Number Theory Seminar Tuan Ngo Dac will talk about Special values and tensor powers of Drinfeld modules.
9 Mar. 2020, 15:15-16:15 Algebra/Topology Seminar Speaker: Zhiyuan Ding Title: On analogues of modular units for the moduli stack of Drinfeld shtukas
6 Mar. 2020, 14:15-15:15 Number Theory Seminar Martin Widmer will talk about the "Rate of escape for lattices and their duals".
2 Mar. 2020, 15:15-16:15 Algebra/Topology Seminar Speaker: Omar Antolin-Camarena Title: Thom ring spectra and orientation
24 Feb. 2020, 15:15-16:15 Algebra/Topology Seminar Speaker: Markus Linckelmann (City, University of London) Title: On degree -1 operators in cohomology
21 Feb. 2020, 13:15-14:15 Number Theory Seminar Sazzad Biswas (KU) will talk about ``Computation of the Langlands's lambda function for a finite Galois extension.''
17 Feb. 2020, 15:15-16:15 Algebra/Topology seminar Speaker: Jeremy Hahn (MIT) Title: Using the Adams spectral sequence to make smooth structures on manifolds
14 Feb. 2020, 16:15-17:30 Seminar by Mads Kyed (Flensburg) Title: Navier-Stokes equations: Steady flow around a two-dimensional rotating body.
13 Feb. 2020, 15:15-16:15 Algebra/Topology seminar Speaker: Zhaoting Wei (Kent State University-Geauga) Title: Maurer-Cartan equation and perfect complexes
10 Feb. 2020, 11:15-12:30 Seminar by Dorothea Bahns (U Göttingen) Title: The Gabor wavefront set and the twisted convolution
7 Feb. 2020, 15:15-16:00 What is... string topology of finite groups of Lie type? Anssi Lahtinen will explain what string topology of finite groups of Lie type is.
4 Feb. 2020, 11:15-12:15 GAMP/TFA seminar by Alexander Friedrich (U Copenhagen) Title: How to Plant a Bubble Tree
3 Feb. 2020, 15:15-16:15 Algebra/Topology Seminar Speaker: Nils Prigge (University of Cambridge) Title: Tautological Rings of Fibrations