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On Unstable Isolated and Embedded Eigenvalues - MaRDI portal

On Unstable Isolated and Embedded Eigenvalues

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Publication:4129348

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DOI10.1002/MANA.19770770108zbMath0356.47017OpenAlexW1991641603MaRDI QIDQ4129348

Michael Demuth

Publication date: 1977

Published in: Mathematische Nachrichten (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1002/mana.19770770108

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Perturbation theory of linear operators (47A55) Linear symmetric and selfadjoint operators (unbounded) (47B25)

Cites Work

Some theorems on perturbation theory. Ill

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