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arXiv · 2408.16696

Perturbations of APS Boundary Conditions for Lorentzian Dirac Operators

Lennart Ronge
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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.

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Lennart Ronge. 2024-08-29. Perturbations of APS Boundary Conditions for Lorentzian Dirac Operators. https://doi.org/10.3842/sigma.2025.088

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