Approximation of the derivatives of finitely smooth functions belonging to non-isotropic classes

DOI10.1070/IM2004V068N01ABEH000467zbMath1071.41030MaRDI QIDQ4674627

S. N. Kudryavtsev

Publication date: 17 May 2005

Published in: Izvestiya: Mathematics (Search for Journal in Brave)

zbMATH Keywords

asymptoticswidthsBesov classesnon-isotropicNikol'ski classes

Mathematics Subject Classification ID

Sobolev spaces and other spaces of ``smooth functions, embedding theorems, trace theorems (46E35) Multidimensional problems (41A63) Approximation by arbitrary nonlinear expressions; widths and entropy (41A46)

Related Items (2)

Extension of functions in non-isotropic Nikolskii–Besov spaces and approximation of their derivatives ⋮ The best accuracy of reconstruction of finitely smooth functions from their values at a given number of points

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