A. Nies: Logic aspects of profinite groups

The various subdisciplines of mathematical logic connect in interesting ways to separable profinite groups. We present three examples. 1. The complexity of t...

Michael Wiemeler (WWU Münster): An equivariant Quillen theorem. (Oberseminar Topologie)

In this talk I will explain why the canonical map from the Z/2-equivariant Lazard ring to the Z/2-equivariant complex bordism ring is an isomorphism. This is jo...

Oberseminar Differentialgeometrie: Saskia Roos, MPI Bonn, Vortrag: The Dirac operator under codimension one collapse

Tomasz Kania (Warwick): When is multiplication in a Banach algebra open? Oberseminar C*-Algebren.

We contribute to the on-going project of determining for what functions spaces the operation of multiplication is an open map by putting our investigations on a...

O. Bräunling (Freiburg): K-theory of locally compact modules, Mittagsseminar zur Arithmetik

We discuss the K-theory of categories of modules over a number field, but additionally equipped with a locally compact topology. Such a category has a natural e...

Robin Loose (Münster): Hyperbolic Groups and Aspherical Manifolds - New Results

Further information

Kristin Courtney (Charlottesville): Finite-dimensional representations of C*-algebras and AF mapping telescopes. Oberseminar C*-Algebren.

Eugen Hellmann: Identification of the derived Hecke algebra II, Oberseminar p-adische Arithmetik