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This article is cited in 24 scientific papers (total in 24 papers)
Approximation Properties of the Vallée-Poussin Means of Partial Sums of a Mixed Series of Legendre Polynomials
I. I. Sharapudinov Daghestan Scientific Centre of the Russian Academy of Sciences
Abstract:
We estimate the order of weighted approximations of functions and their derivatives by using the means of mixed series of Legendre polynomials. As the main result, we obtain estimates of the order of approximation of a function and its derivatives by the Vallée-Poussin means and their derivatives.
Keywords:
approximation of functions, Legendre polynomial, Fourier–Legendre series, Vallée-Poussin means, Jacobi polynomial, Hermite interpolation polynomial.
Received: 04.04.2007
Citation:
I. I. Sharapudinov, “Approximation Properties of the Vallée-Poussin Means of Partial Sums of a Mixed Series of Legendre Polynomials”, Mat. Zametki, 84:3 (2008), 452–471; Math. Notes, 84:3 (2008), 417–434
Linking options:
https://www.mathnet.ru/eng/mzm5541https://doi.org/10.4213/mzm5541 https://www.mathnet.ru/eng/mzm/v84/i3/p452
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