The relative \(n\)-widths of Sobolev classes with restrictions

DOI10.1016/j.jat.2008.05.003zbMath1165.41006OpenAlexW1973975053MaRDI QIDQ1011484

Gui Qiao Xu

Publication date: 8 April 2009

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

Full work available at URL: https://doi.org/10.1016/j.jat.2008.05.003

zbMATH Keywords

Sobolev classesrelative \(n\)-width

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Approximation by arbitrary nonlinear expressions; widths and entropy (41A46)

Related Items (1)

Relative infinite-dimensional width of Sobolev classes

Cites Work

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• Approximation of Sobolev classes by their finite-dimensional sections
• Exact values of relative widths of classes of differentiable functions
• Über die beste Annäherung von Funktionen einer gegebenen Funktionenklasse
• ON A METHOD FOR ESTIMATION FROM BELOW OF DIAMETERS OF SETS IN BANACH SPACES

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