Hanfeng Li (Chongqing University): Permanents and restricted permutations. Oberseminar C*-Algebren.

The permanent of a square matrix is defined similar to its determinant, without signs on the products of entries. I will introduce a notion of permanent for ele...

Ludovic Souetre (Sorbonne Université, Paris): The homogeneous Robin boundary conditions for asymptotically Anti-de Sitter spaces

Modelled on the Anti-de Sitter space, asymptotically Anti-de Sitter spaces can be defined as Lorentzian manifolds that possess a timelike conformal boundary. Du...

Mittagsseminar zur Arithmetik: Eva Viehmann (Münster): Oort's conjecture on automorphisms of supersingular abelian varieties

We prove Oort's conjecture that generically on the supersingular locus of the moduli space of principally polarized abelian varieties of genus g and in characte...

Prof. Dr. Perla Sousi (University of Cambridge): The cutoff phenomenon for random walks

I will talk about the mixing time which is the time it takes for a random walk to reach equilibrium. My focus will be on the cutoff phenomenon observed when the...

Helmut Hamm: On Lefschetz-Zariski-van Kampen theorems (Research Seminar on Geometry, Algebra and Topology: Moduli Spaces of Complex Curves)

Girls go Mathematics! Angebot zum Girls' Day

Schülerinnen ab der 7. Klasse sind am Donnerstag, 23. April 2026, am Exzellenzcluster Mathematik Münster und am Fachbereich Mathematik und Informatik eingeladen, Einblicke in das Studium und die Berufswelt von Mathematikerinnen zu bekommen.

Ahmed Ali: Approximate Subgroups with Bounded VC Dimension

We discuss a result from 2020 by Conant-Pillay on Approximate Subgroups with Bounded VC Dimension as well as more recent developments by, for example, Conant-Te...

Wilhelm Killing Kolloquium: Prof. Dr. Hans Ringström (KTH Stockholm): Quiescent big bang singularities

Since Hawking proved his singularity theorem, it is clear that singularities of big bang type typically occur in cosmological solutions to Einstein?s equations....