On some questions of spectral theory for differential equations whose coefficients have singular points

zbMath0717.34089MaRDI QIDQ754056

L. D. Kudryavtsev

Publication date: 1990

Published in: Proceedings of the Steklov Institute of Mathematics (Search for Journal in Brave)

zbMATH Keywords

eigenvalueseigenfunctionsweighted functional spacesvariational methodextremal propertiesweak degeneration

Mathematics Subject Classification ID

General spectral theory of ordinary differential operators (34L05)

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