APPROXIMATION OF FUNCTIONS WITH A BOUNDED MIXED DIFFERENCE BY TRIGONOMETRIC POLYNOMIALS, AND THE WIDTHS OF SOME CLASSES OF FUNCTIONS

DOI10.1070/IM1983V020N01ABEH001346zbMath0511.42005OpenAlexW2048486109MaRDI QIDQ4748544

Vladimir N. Temlyakov

Publication date: 1983

Published in: Mathematics of the USSR-Izvestiya (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1070/im1983v020n01abeh001346

zbMATH Keywords

multidimensional trigonometric approximationdiameter of classes of functions

Mathematics Subject Classification ID

Trigonometric approximation (42A10) Approximation by arbitrary nonlinear expressions; widths and entropy (41A46)

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Widths of weighted Sobolev classes on a John domain: strong singularity at a point

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