scientific article; zbMATH DE number 1837629

DOI10.1023/A:1021643732395zbMath1006.42003OpenAlexW2914534877MaRDI QIDQ4782480

S. O. Chajchenko, Vladimir I. Rukasov

Publication date: 1 December 2002

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

Full work available at URL: https://doi.org/10.1023/a:1021643732395

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zbMATH Keywords

de la Vallée Poussin sumscontinuous periodic functionKolmogorov-Nikolskij problem

Mathematics Subject Classification ID

Trigonometric approximation (42A10) Inequalities in approximation (Bernstein, Jackson, Nikol'ski?-type inequalities) (41A17) Trigonometric series of special types (positive coefficients, monotonic coefficients, etc.) (42A32)

Related Items (3)

Approximation of the classes \({W}_{\beta}^r{H}^{\alpha }\) by three-harmonic Poisson integrals ⋮ Direct theorems on approximation of periodic functions with high generalized smoothness ⋮ Approximation of Periodic Functions of High Generalized Smoothness by Fourier Sums

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