Banach-Euclidean four-point properties
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Joseph Valentine (1980)
Fundamenta Mathematicae
Uttara Naik-Nimbalkar (1981)
Annales de l'I.H.P. Probabilités et statistiques
Eva Kopecká (2012)
Fundamenta Mathematicae
We show how Kirszbraun's theorem on extending Lipschitz mappings in Hilbert space implies its own generalization. There is a continuous extension operator preserving the Lipschitz constant of every mapping.
M. Meimaris (1984)
Cahiers de l'analyse des données
Bauschke, Heinz H., Borwein, Jonathan M., Tseng, Paul (2000)
Journal of Convex Analysis
Hans A. Keller, Hermina Ochsenius A. (1995)
Mathematica Slovaca
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