Perturbations of APS Boundary Conditions for Lorentzian Dirac Operators
Differential Geometry
2025-10-22 v3
Abstract
We study how far APS boundary conditions for a Lorentzian Dirac operator may be perturbed without destroying Fredholmness of the Dirac operator. This is done by developing criteria under which the perturbation of a compact pair of projections is a Fredholm pair.
Keywords
Cite
@article{arxiv.2408.16696,
title = {Perturbations of APS Boundary Conditions for Lorentzian Dirac Operators},
author = {Lennart Ronge},
journal= {arXiv preprint arXiv:2408.16696},
year = {2025}
}