The equivariant index theorem on Lorentzian spacetimes

06.11.2025, 16:15  –  Building 9, room 1.22
Forschungsseminar Differentialgeometrie

Lennart Ronge (UP)

The equivariant index is a refinement of the classical Fredholm index in the presence of a group action. On Riemannian manifolds, there are formulas for the equivariant index of Dirac operators. We extend those to Dirac operators on suitable Lorentzian manifolds.

This is based on joint work with Onirban Islam.