Finite-dimensional perturbations of spectral problems and variational approximation methods for eigenvalue problems. Part I. Finite-dimensional perturbations

DOI10.4064/sm-36-1-1-76zbMath0203.45202OpenAlexW967453723MaRDI QIDQ5603519

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Publication date: 1970

Published in: Studia Mathematica (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/217469

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