TQFTs and APS index theory
Markus Upmeier (University of Aberdeen)
Monday 25th September 16:00-17:00 Maths 311B
Beginning with simple examples, my talk will introduce a novel approach to understanding Atiyah-Patodi-Singer indices for manifolds with boundary that casts them within the framework of an associated topological quantum field theory. This has applications in spectral geometry, particularly to Floer-style gradings on moduli spaces.