A remark on eigenvalue perturbation theory at vanishing isolation distance

DOI10.2140/memocs.2016.4.297zbMath1356.81134OpenAlexW2582690215MaRDI QIDQ506033

Fiorella Barone, Sandro Graffi

Publication date: 30 January 2017

Published in: Mathematics and Mechanics of Complex Systems (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2140/memocs.2016.4.297

zbMATH Keywords

eigenvalue perturbation theoryisolation distance

Mathematics Subject Classification ID

Closed and approximate solutions to the Schrödinger, Dirac, Klein-Gordon and other equations of quantum mechanics (81Q05) Selfadjoint operator theory in quantum theory, including spectral analysis (81Q10) Perturbation theories for operators and differential equations in quantum theory (81Q15)

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