Algebra/Topology Seminar

Speaker: Louis Hainaut

Title: Configuration spaces on a wedge of spheres

Abstract: I will discuss recent joint work with Nir Gadish, in which we proved that the compactly supported cohomology of configuration spaces on a wedge of spheres can be described by certain universal "Taylor coefficients", and we obtained partial information about these coefficients. I will also discuss how these cohomology groups are related to other fields of mathematics, e.g. cohomology of moduli spaces of curves, Hochschild-Pirashvili homology and representation theory of Out(F_n).