On characterization of non-linear best Chebyshev approximations

DOI10.4064/CM-43-1-111-116zbMath0468.41018OpenAlexW745448146MaRDI QIDQ3921631

Ryszard Smarzewski

Publication date: 1980

Published in: Colloquium Mathematicum (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.4064/cm-43-1-111-116

zbMATH Keywords

Kolmogorov type characterizationweak betweenness property

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50)

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Chebyshev additive weight approximation by maximal families

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