A characterization of best approximations with restricted ranges

DOI10.1016/0021-9045(92)90116-6zbMath0761.41017OpenAlexW2028093394MaRDI QIDQ1201285

Shu-Sheng Xu

Publication date: 17 January 1993

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

Full work available at URL: https://doi.org/10.1016/0021-9045(92)90116-6

zbMATH Keywords

elements of best approximation with restrictions

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) Approximation with constraints (41A29)

Related Items (1)

On characterization of best approximation with certain constraints

Cites Work

• An alternation theory for copositive approximation
• Théoremes de caractérisation d'une meilleure approximation dans un espace norme et généralisation de l'algorithme de Remes
• Approximation by functions having restricted ranges. III
• On uniform approximation with interpolatory constraints
• Approximation by functions having restricted ranges: Equality case
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