Perturbations of gaps in the essential spectra of self-adjoint relations

DOI10.1080/03081087.2023.2277208MaRDI QIDQ6622103

Publication date: 22 October 2024

Published in: Linear and Multilinear Algebra (Search for Journal in Brave)

Perturbation theory of linear operators (47A55) Linear symmetric and selfadjoint operators (unbounded) (47B25) Linear relations (multivalued linear operators) (47A06)

Cites Work

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Stability of essential spectra of self-adjoint subspaces under compact perturbations
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Spectral properties of singular discrete linear Hamiltonian systems
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Essential spectra of self-adjoint relations under relatively compact perturbations
Boundary Value Problems, Weyl Functions, and Differential Operators
On the essential spectra of some matrix of linear relations
Extension theory of formally normal and symmetric subspaces
Functional Operators (AM-22), Volume 2

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