A note on spectral concentration for non-isolated eigenvalues

DOI10.1016/0022-247X(91)90283-6zbMath0747.47005MaRDI QIDQ1176173

James S. Howland

Publication date: 25 June 1992

Published in: Journal of Mathematical Analysis and Applications (Search for Journal in Brave)

zbMATH Keywords

non-isolated eigenvaluesperturbation equations to order \(p\)

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Perturbation theory of linear operators (47A55)

Related Items (max. 100)

On asymptotic perturbation theory for quantum mechanics: Almost invariant subspaces and gauge invariant magnetic perturbation theory ⋮ Metastable states when the Fermi golden rule constant vanishes

Cites Work

• Some theorems on perturbation theory. V
• Adiabatic theorem and spectral concentration. I: Arbitrary order spectral concentration for the Stark effect in atomic physics
• Spectral concentration for self-adjoint operators
• Spectral concentration near embedded eigenvalues
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