A sharp inequality of Jackson-Stechkin type in \(L_{2}\) and the widths of functional classes
type: Item
instance of: scholarly article
title: A sharp inequality of Jackson-Stechkin type in \(L_{2}\) and the widths of functional classes
zbMATH Open document ID: 1194.42005
DOI: 10.1134/S0001434609090028
author: V. I. Zabutnaya
author: S. B. Vakarchuk
published in: Mathematical Notes
publication date: 2010-01-12T00:00:00Z
Mathematics Subject Classification ID: 42A10
Mathematics Subject Classification ID: 41A17
Mathematics Subject Classification ID: 41A46
zbMATH DE Number: 5656330
zbMATH Keywords: inequality of Jackson-Stechkin type
zbMATH Keywords: modulus of continuity
zbMATH Keywords: Fourier series
zbMATH Keywords: Steklov function
zbMATH Keywords: Bernstein \(n\)-width
zbMATH Keywords: Kolmogorov \(n\)-width
zbMATH Keywords: Gelfand \(n\)-width
MaRDI profile type: Publication
cites work: Q4040778
cites work: Q3817079
cites work: Q3319185
cites work: Best Polynomial Approximations in L 2 and Widths of Some Classes of Functions
cites work: Problems in the approximation of \(2\pi \)-periodic functions by Fourier sums in the space \(L_2 (2\pi)\)
cites work: Exact constants in Jackson-type inequalities and exact values of widths
cites work: Jackson-type inequalities and widths of function classes in \(L_{2}\)
cites work: Q5558293
description: scientific article; zbMATH DE number 5656330