M. A. Krasnosel'skii, L. A. Ladyzhenskii, “The scope of the concept of a <nobr>$u_0$</nobr>-concave operator”, Izv. Vyssh. Uchebn. Zaved. Mat., 1959, Number 5,Pages <nobr>112

JOURNALS // Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika // Archive

Izv. Vyssh. Uchebn. Zaved. Mat., 1959 Number 5, Pages 112–121 (Mi ivm2825)

The scope of the concept of a $u_0$-concave operator

M. A. Krasnosel'skii, L. A. Ladyzhenskii

Received: 10.02.1959

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