N. B. Kerimov, “Necessary conditions for the property of being a basis in <nobr>$L_2(G)$</nobr> for a system of eigen- and associated functions of a second-order differential operator”, Dokl. Akad. Nauk SSSR, 1988, Volume 299, Number 4,Pages <nobr>809

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Dokl. Akad. Nauk SSSR, 1988 Volume 299, Number 4, Pages 809–811 (Mi dan7695)

MATHEMATICS

Necessary conditions for the property of being a basis in $L_2(G)$ for a system of eigen- and associated functions of a second-order differential operator

N. B. Kerimov

S. M. Kirov Azerbaidzhan State University, Baku

UDC: 517.927.25

Presented: A. N. Tikhonov
Received: 16.09.1986

Fulltext: PDF file (203 kB)

English version: Doklady Mathematics, 1988, 37:2, 468–470

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