The deficiency index problem for powers of ordinary differential expressions

zbMath0367.34014MaRDI QIDQ1242251

Thomas T. Read, Robert M. Kauffman, Anton Zettl

Publication date: 1977

Published in: Lecture Notes in Mathematics (Search for Journal in Brave)

Mathematics Subject Classification ID

Weyl theory and its generalizations for ordinary differential equations (34B20) Research exposition (monographs, survey articles) pertaining to ordinary differential equations (34-02)

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