Closedness of the approximate spectrum of a~polynomial operator pencil
Matematičeskie zametki, Tome 47 (1990) no. 6, pp. 147-148
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@article{MZM_1990_47_6_a21,
author = {V. N. Pyvovarchyk},
title = {Closedness of the approximate spectrum of a~polynomial operator pencil},
journal = {Matemati\v{c}eskie zametki},
pages = {147--148},
publisher = {mathdoc},
volume = {47},
number = {6},
year = {1990},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/MZM_1990_47_6_a21/}
}
V. N. Pyvovarchyk. Closedness of the approximate spectrum of a~polynomial operator pencil. Matematičeskie zametki, Tome 47 (1990) no. 6, pp. 147-148. http://geodesic.mathdoc.fr/item/MZM_1990_47_6_a21/