# The Auslander trace

Algebra/Geometry/Topology Seminar

#### by Amnon Neeman

Institution: ANU
Date: Thu 27th May 2010
Time: 2:15 PM
Location: Old Arts Theatre B

Abstract: Many years ago Auslander noticed that, for an isolated Gorenstein singularity, there is a natural trace defined on homomorphisms between certain pairs of modules. A conjectural formula was given recently by Kapustin and Li, using physics heuristics. We will discuss Murfet's mathematical proof of the formula.