On the deficiency index of a differential operator
Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 17 (1962) no. 4
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@article{RM_1962_17_4_a11,
author = {F. A. Neimark},
title = {On the deficiency index of a~differential operator},
journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
year = {1962},
volume = {17},
number = {4},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/RM_1962_17_4_a11/}
}
F. A. Neimark. On the deficiency index of a differential operator. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 17 (1962) no. 4. http://geodesic.mathdoc.fr/item/RM_1962_17_4_a11/