Dirac spectrum

In mathematics, a Dirac spectrum, named after Paul Dirac, is the spectrum of eigenvalues of a Dirac operator on a Riemannian manifold with a spin structure. The isospectral problem for the Dirac spectrum asks whether two Riemannian spin manifolds have identical spectra. The Dirac spectrum depends on the spin structure in the sense that there exists a Riemannian manifold with two different spin structures that have different Dirac spectra.^[1]

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^ Bär, Christian (2000), "Dependence of the Dirac spectrum on the spin structure", Global analysis and harmonic analysis. Papers from the conference, Marseille-Luminy, France, May 1999, Séminaires & Congrés, vol. 4, Paris: Société Mathématique de France, pp. 17–33, ISBN 2-85629-094-9

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This page was last edited on 8 March 2024, at 07:29

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