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Scientific notes and problems
A fix-point theorem
O. V. Lokutsievskii
Received: 02.12.1955
Citation:
O. V. Lokutsievskii, “A fix-point theorem”, Russian Math. Surveys, 12:3 (1957)
Linking options:
https://www.mathnet.ru/eng/rm7620 https://www.mathnet.ru/eng/rm/v12/i3/p171
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