Around Ulam's question on retractions

zbMath1290.47054MaRDI QIDQ1947838

Kazimierz Goebel, Phichet Chaoha, Imchit Termwuttipong

Publication date: 26 April 2013

Published in: Topological Methods in Nonlinear Analysis (Search for Journal in Brave)

zbMATH Keywords

Hilbert spaceBrouwer's fixed point theoremoptimal retraction problem

Mathematics Subject Classification ID

Fixed-point theorems (47H10) Fixed-point and coincidence theorems (topological aspects) (54H25)

Related Items (3)

Sets with structure, mappings and fixed point property: fixed point structures ⋮ Remarks on retracting balls on spherical caps in \(c_{0}\), \(c\), \(l^{\infty }\) spaces ⋮ Lipschitz retractions onto sphere vs spherical cup in a Hilbert space

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