GT seminar: "Generalized Froyshov invariants"

Abstract: Froyshov invariants are rational valued invariants of 3-manifolds with the same rational homology as the 3-sphere. They can be extracted from monopole Floer theory and contain information about the topology of 4-manifolds that bound a given such 3-manifold. I will discuss a framework to obtain generalized Froyshov invariants using Seiberg-Witten-Floer homotopy types and various tools from equivariant stable homotopy theory. This is work in progress with Tyrone Cutler.

This is a seminar in our Geometry and Topology seminar series.