The degree of the best approximation in Banach spaces

DOI10.2748/tmj/1178225799zbMath0801.41028OpenAlexW2025226588MaRDI QIDQ1326957

Toshihiko Nishishiraho

Publication date: 15 June 1994

Published in: Tôhoku Mathematical Journal. Second Series (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2748/tmj/1178225799

zbMATH Keywords

direct theorems of Jackson type

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) Rate of convergence, degree of approximation (41A25)

Cites Work

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• Quantitative theorems on linear approximation processes of convolution operators in Banach spaces
• Saturation of multiplier operators in Banach spaces
• Multipliers for (C,a)-bounded Fourier expansions in Banach spaces and approximation theory
• Topics in approximation theory
• On summation processes of Fourier expansions in Banach spaces. I: Comparison theorems
• Geometric theory of Banach spaces. Part I. The theory of basis and minimal systems

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