Inequalities for upper bounds of functionals on the classes \(W^rH^{\omega}\) and some of their applications

DOI10.1007/BF02514138zbMATH Open0987.42003MaRDI QIDQ2740367

S. A. Pichugov, V. A. Kofanov, N. P. Korneichuk, V. F. Babenko

Publication date: 16 September 2001

Published in: Ukraïns'kyĭ Matematychnyĭ Zhurnal (Search for Journal in Brave)

zbMATH Keywords

polynomial splinestrigonometric polynomialsKolmogorov type inequalitiesexact inequalitiesBernstein-Nikol'skij type inequalities

Mathematics Subject Classification ID

Trigonometric approximation (42A10) Inequalities in approximation (Bernstein, Jackson, Nikol'ski?-type inequalities) (41A17) Trigonometric polynomials, inequalities, extremal problems (42A05)

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