A conjecture implying the existence of non-convex Chebyshev sets in infinite-dimensional Hilbert spaces

zbMath1218.41016arXiv1101.2992MaRDI QIDQ3005667

Biagio Ricceri

Publication date: 9 June 2011

Full work available at URL: https://arxiv.org/abs/1101.2992

zbMATH Keywords

Hilbert spaceconvexityChebyshev set

Mathematics Subject Classification ID

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

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