Self-adjoint boundary problems with discrete spectrum generated by the Sturm-Liouville equation with unbounded operator coefficient

DOI10.1007/BF01086746zbMath0259.34072OpenAlexW2071148334MaRDI QIDQ2560375

V. I. Gorbachuk, M. L. Gorbachuk

Publication date: 1972

Published in: Functional Analysis and its Applications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/bf01086746

Mathematics Subject Classification ID

Periodic solutions to ordinary differential equations (34C25) Spectrum, resolvent (47A10) Differential equations in abstract spaces (34G99)

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