21
Oct
2019
Christopher Deninger (WWU Münster): Topological spaces attached to systems of Diophantine equations. (Oberseminar Topologie)
We attach some pretty gruesome topological spaces to systems of Diophantine equations. These spaces are equipped with an action of the multiplicative group of p...
21
Oct
2019
Oberseminar Differentialgeometrie: Elena Mäder-Baumdicker (Darmstadt): Willmore spheres are unstable
Abstract: I will explain what the Willmore Morse Index of unbranched Willmore spheres in Euclidean three-space is and how to compute it. A consequence of that c...
22
Oct
2019
Mikael de la Salle (Lyon): Fourier analysis on Lie group von Neumann algebras. Oberseminar C*-Algebren.
22
Oct
2019
Oberseminar p-adische Arithmetik: Urs Hartl: Algebraic Stacks III
23
Oct
2019
14:15 // Leonie Schmeller (WWU Münster): Derivation of linearized elasticity from nonlinear multiwell energies
23
Oct
2019
Sahana Balasubramanya (Münster): Hyperbolic structures on groups. (Geometric Group Theory Seminar)
For any group G, I will define the set of hyperbolic structures on G, denoted H(G), which consists of equivalence classes of (possibly infinite) generating sets...
24
Oct
2019
Pierre Touchard: Burden in exact sequences of abelian groups
In model theory, the burden is a notion of dimension for NTP2 structures, which form a relatively tame class of first order structures. Chernikov and Simon (201...
24
Oct
2019
Kolloquium Wilhelm Killing: Prof. Dr. Marc Levine (Duisburg-Essen): GWGW theory
Abstract: We will describe recent work constructing refinements to the Grothendieck-Witt ring of a number of integer-valued invariants found in enumerative geom...