scientific article; zbMATH DE number 1971604

zbMath1066.47055MaRDI QIDQ4423214

Kazimierz Goebel

Publication date: 27 August 2003

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zbMATH Keywords

Schauder's fixed point theoremBanach contraction principleBrouwer's fixed point theoremnonexpansive mapsminimal invariant setsgeometry of Banach spacesoptimal retractionsminimal displacement problemKirzbraun--Valentine theoremLipschitzian homotopies

Mathematics Subject Classification ID

Fixed-point theorems (47H10) Fixed-point and coincidence theorems (topological aspects) (54H25) Geometry and structure of normed linear spaces (46B20) Contraction-type mappings, nonexpansive mappings, (A)-proper mappings, etc. (47H09) Introductory exposition (textbooks, tutorial papers, etc.) pertaining to operator theory (47-01)

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