Oberseminar Global Analysis and Operator Algebras

The equivariant index theorem on Lorentzian spacetimesOberseminar Global Analysis and Operator Algebras

Name: The equivariant index theorem on Lorentzian spacetimes
Start: 2025-11-11T14:15:00+01:00
End: 2025-11-11T15:45:00+01:00
Location: Mathezentrum

by Lennart Ronge (University of Potsdam)

Tuesday Nov 11, 2025, 2:15 PM → 3:45 PM Europe/Berlin

Endenicher Allee 60/1-008 (Mathezentrum)

Endenicher Allee 60/1-008

Mathezentrum

Description

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.