Kolmogorov-type inequalities for derived functions of two variables with application for approximation by an ``angle
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Publication:906408
DOI10.3103/S1066369X15110018zbMath1339.41036MaRDI QIDQ906408
Publication date: 21 January 2016
Published in: Russian Mathematics (Search for Journal in Brave)
Orthogonal polynomials and functions of hypergeometric type (Jacobi, Laguerre, Hermite, Askey scheme, etc.) (33C45) Best approximation, Chebyshev systems (41A50) Inequalities in approximation (Bernstein, Jackson, Nikol'ski?-type inequalities) (41A17)
Related Items (5)
Approximation by classical orthogonal polynomials with weight in spaces \(L_{2, \gamma }(a,b)\) and widths of some functional classes ⋮ On estimates of diameter values of classes of functions in the weight space \(L_{2, \gamma } ( \mathbb{R}^2)\), \(\gamma = \exp(-x^2 - y^2)\) ⋮ On the estimates of the values of various widths of classes of functions of two variables in the weight space \(L_{2, \gamma } ( \mathbb{R}^2)\), \(\gamma = \exp ( - x^2 - y^2)\) ⋮ Some problems in the theory of ridge functions ⋮ Approximation of Bivariate Functions by Fourier-Tchebychev ``Circular Sums in $L_{2,\rho}$
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