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Conditions for the Spectrum in Eigenfunction Theory to be Bounded below and Discrete for λ < 0 - MaRDI portal

Conditions for the Spectrum in Eigenfunction Theory to be Bounded below and Discrete for λ < 0

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Publication:5536807

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DOI10.1112/jlms/s1-42.1.672zbMath0155.41202OpenAlexW4236104857MaRDI QIDQ5536807

Michael S. P. Eastham

Publication date: 1967

Published in: Journal of the London Mathematical Society (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1112/jlms/s1-42.1.672

zbMATH Keywords

ordinary differential equations

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