On Johnson's example of a nonconvex Chebyshev set

DOI10.1006/jath.1993.1058zbMath0785.41022OpenAlexW2090217350MaRDI QIDQ1260633

Miaohua Jiang

Publication date: 25 August 1993

Published in: Journal of Approximation Theory (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1006/jath.1993.1058

zbMATH Keywords

nonconvex Chebyshev sets

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65)

Related Items (7)

The closure in a Hilbert space of a prehilbert space Chebyshev set that fails to be a Chebyshev set ⋮ Connectedness and other geometric properties of suns and Chebyshev sets ⋮ Continuities of metric projection and geometric consequences ⋮ Nearly Chebyshev sets are almost convex ⋮ The Bregman distance, approximate compactness and convexity of Chebyshev sets in Banach spaces ⋮ CHEBYSHEV SETS ⋮ Closure in a Hilbert space of a prehilbert space Chebyshev set

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