Deficiency index and spectrum of a selfadjoint system of first-order differential equations
Doklady Akademii Nauk, Tome 181 (1968) no. 2, pp. 278-281
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@article{DAN_1968_181_2_a4,
author = {L. B. Zelenko},
title = {Deficiency index and spectrum of a selfadjoint system of first-order differential equations},
journal = {Doklady Akademii Nauk},
pages = {278--281},
year = {1968},
volume = {181},
number = {2},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/DAN_1968_181_2_a4/}
}
L. B. Zelenko. Deficiency index and spectrum of a selfadjoint system of first-order differential equations. Doklady Akademii Nauk, Tome 181 (1968) no. 2, pp. 278-281. http://geodesic.mathdoc.fr/item/DAN_1968_181_2_a4/