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This article is cited in 6 scientific papers (total in 6 papers)
MATHEMATICS
Necessary and sufficient conditions for a subsystem of the eigen- and associated functions of a Keldys bundle of ordinary differential operators to be a basis
V. A. Il'inab a V. A. Steklov Mathematical Institute, USSR Academy of Sciences
b Lomonosov Moscow State University
Citation:
V. A. Il'in, “Necessary and sufficient conditions for a subsystem of the eigen- and associated functions of a Keldys bundle of ordinary differential operators to be a basis”, Dokl. Akad. Nauk SSSR, 227:4 (1976), 796–799
Linking options:
https://www.mathnet.ru/eng/dan40263 https://www.mathnet.ru/eng/dan/v227/i4/p796
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