Dokl. Akad. Nauk SSSR, 1990 Volume 314, Number 1, Pages 25–28
(Mi dan6440)
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MATHEMATICS
A condition for the unconditional basis property for systems of
eigen- and associated functions of ordinary differential operators
V. D. Budaev Smolensk branch of Moscow Power Engineering Institute
UDC:
517.927.25 Presented: A. N. TikhonovReceived: 21.06.1989
English version:
Doklady Mathematics, 1991,
42:2,
252–255
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