The scope of the concept of a $u_0$-concave operator
Izvestiâ vysših učebnyh zavedenij. Matematika, no. 5 (1959), pp. 112-121
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@article{IVM_1959_5_a11,
author = {M. A. Krasnosel'skii and L. A. Ladyzhenskii},
title = {The scope of the concept of a~$u_0$-concave operator},
journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
pages = {112--121},
year = {1959},
number = {5},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/IVM_1959_5_a11/}
}
M. A. Krasnosel'skii; L. A. Ladyzhenskii. The scope of the concept of a $u_0$-concave operator. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 5 (1959), pp. 112-121. http://geodesic.mathdoc.fr/item/IVM_1959_5_a11/