FIXED POINTS AND DIFFERENTIABILITY OF THE NORM

DOI10.1070/SM1989v064n02ABEH003320zbMath0678.47043OpenAlexW2022320773MaRDI QIDQ3834577

R. V. Rakhmankulov, N. M. Gulevich, Sergei V. Konyagin

Publication date: 1989

Published in: Mathematics of the USSR-Sbornik (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1070/sm1989v064n02abeh003320

zbMATH Keywords

fixed pointsnonexpansive mapuniformly convexuniformly smoothbounded closed convex subset of a Banach spaceinward mappings

Mathematics Subject Classification ID

Fixed-point theorems (47H10) Geometry and structure of normed linear spaces (46B20) Contraction-type mappings, nonexpansive mappings, (A)-proper mappings, etc. (47H09) Isomorphic theory (including renorming) of Banach spaces (46B03)

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