On estimates of approximation characteristics of the Besov classes of periodic functions of many variables

DOI10.1007/BF02487348zbMath0939.42005OpenAlexW2003686347MaRDI QIDQ4258880

A. S. Romanyuk

Publication date: 14 September 1999

Published in: Ukrainian Mathematical Journal (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/bf02487348

zbMATH Keywords

Besov classperiodic functionFourier sumconvolution transformde la Vallée-Poussin kernel

Mathematics Subject Classification ID

Trigonometric approximation (42A10) Rate of convergence, degree of approximation (41A25) Fourier series and coefficients in several variables (42B05)

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