Orientation flow for skew-adjoint Fredholm operators with odd-dimensional kernel

Doll N (2024)


Publication Type: Journal article

Publication year: 2024

Journal

Book Volume: 286

Article Number: 110194

Journal Issue: 1

DOI: 10.1016/j.jfa.2023.110194

Abstract

The orientation flow of paths of real skew-adjoint Fredholm operators with invertible endpoints was studied by Carey, Phillips and Schulz-Baldes. For paths of real skew-adjoint Fredholm operators with odd-dimensional kernel the orientation flow is defined with respect to a real one-dimensional reference projection. It is homotopy invariant and fulfills a concatenation property. When applied to closed paths it is independent of the reference projection and provides an isomorphism of the fundamental group of the space of real skew-adjoint Fredholm operators with odd-dimensional kernel to Z2. As an example the orientation flow of the magnetic flux inserted in a half-sided Kitaev chain is studied.

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How to cite

APA:

Doll, N. (2024). Orientation flow for skew-adjoint Fredholm operators with odd-dimensional kernel. Journal of Functional Analysis, 286(1). https://dx.doi.org/10.1016/j.jfa.2023.110194

MLA:

Doll, Nora. "Orientation flow for skew-adjoint Fredholm operators with odd-dimensional kernel." Journal of Functional Analysis 286.1 (2024).

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