scientific article; zbMATH DE number 3449192
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Publication:4774504
zbMath0286.41021MaRDI QIDQ4774504
Publication date: 1973
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Best approximation, Chebyshev systems (41A50) Approximation by polynomials (41A10) Fourier coefficients, Fourier series of functions with special properties, special Fourier series (42A16) Spherical harmonics (33C55)
Related Items (3)
Approximation by classical orthogonal polynomials with weight in spaces \(L_{2, \gamma }(a,b)\) and widths of some functional classes ⋮ On the estimates of the values of various widths of classes of functions of two variables in the weight space \(L_{2, \gamma } ( \mathbb{R}^2)\), \(\gamma = \exp ( - x^2 - y^2)\) ⋮ On the best approximation in the mean by algebraic polynomials with weight and the exact values of widths for the classes of functions
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