On multiple eigenvalues of selfadjoint compact operators

DOI10.1006/jmaa.1993.1010zbMath0791.47020OpenAlexW2005283501MaRDI QIDQ2367728

Anna Maria Micheletti, Daniela Lupo

Publication date: 12 August 1993

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

Full work available at URL: https://doi.org/10.1006/jmaa.1993.1010

zbMATH Keywords

Dirichlet boundary conditionssmooth domainsperturbation resultperturbations of the domaineigenvalue-multiplicitymultiple eigenvalues of the Laplacian

Mathematics Subject Classification ID

Linear operators defined by compactness properties (47B07) Eigenvalue problems for linear operators (47A75)

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