A problem on fractional powers of operators
Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 20 (1965) no. 6
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@article{RM_1965_20_6_a13,
author = {P. P. Zabreiko and M. A. Krasnosel'skii and E. I. Pustyl'nik},
title = {A~problem on fractional powers of operators},
journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
year = {1965},
volume = {20},
number = {6},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/RM_1965_20_6_a13/}
}
P. P. Zabreiko; M. A. Krasnosel'skii; E. I. Pustyl'nik. A problem on fractional powers of operators. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Tome 20 (1965) no. 6. http://geodesic.mathdoc.fr/item/RM_1965_20_6_a13/