Approximation of the classes of generalized Poisson integrals by Fourier sums in metrics of the spaces L_s von A. S. Serdiuk, T. A. Stepaniuk

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Uniform approximations by Fourier sums on the classes of convolutions with generalized Poisson kernels von A. S. Serdiuk, T. A. Stepaniuk

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Estimates of the best orthogonal trigonometric approximations of the classes of convolutions of periodic functions of not high smoothness von A. S. Serdiuk, T. A. Stepaniuk

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Estimates of the best m-term trigonometric approximations of classes of analytic functions von A. S. Serdiuk, T. A. Stepaniuk

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Order Estimates for the Best Orthogonal Trigonometric Approximations of the Classes of Convolutions of Periodic Functions of Low Smoothness von A. S. Serdiuk, T. A. Stepaniuk

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Estimations of the Best Approximations for the Classes of Infinitely Differentiable Functions in Uniform and Integral Metrics von A. S. Serdiuk, T. A. Stepaniuk

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Order Estimates for the Best Approximations and Approximations by Fourier Sums in the Classes of Convolutions of Periodic Functions of Low Smoothness in the Uniform Metric von A. S. Serdiuk, T. A. Stepaniuk

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Order estimates for the best approximation and approximation by Fourier sums of classes of infinitely differentiable functions von A. S. Serdiuk, T. A. Stepaniuk

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Approximation by interpolation trigonometric polynomials in metrics of the spaces Lp on the classes of periodic entire functions von A. S. Serdiuk, I. V. Sokolenko

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An approximation of class of convolutions of periodic functions by linear methods based on their Fourier-Lagrange coefficients von A. S. Serdiuk, I. V. Sokolenko

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Approximation of classes (Ψ, β)-differentiable functions by interpolating trigonometric polynomials von A. S. Serdiuk, I. V. Sokolenko

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Exact Values of Kolmogorov Widths for the Classes of Analytic Functions. II von V. V. Bodenchuk, A. S. Serdiuk

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Exact Values of Kolmogorov Widths for the Classes of Analytic Functions. I von V. V. Bodenchuk, A. S. Serdiuk

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Approximation by Fourier sums in classes of Weyl–Nagy differentiable functions with high exponent of smoothness von A. S. Serdiuk, I. V. Sokolenko

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Order Estimates for the Best Approximations and Approximations by Fourier Sums of the Classes of (ψ, β)-Differential Functions von U. Z. Hrabova, A. S. Serdiuk

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Lebesgue-type inequalities for the de la Vallйe-poussin sums on sets of entire functions von A. P. Musiienko, A. S. Serdiuk

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Lebesgue-type inequalities for the de la Valee-Poussin sums on sets of analytic functions von A. P. Musiienko, A. S. Serdiuk

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Estimates from below for Kolmogorov widths in classes of Poisson integral von A. S. Serdiuk, V. V. Bodenchuk

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Estimates of uniform approximations by Zygmund sums on classes of convolutions of periodic functions von A. S. Serdiuk, U. Z. Hrabova

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Approximation by linear methods of classes of (ш,в)−differentiable functions von A. S. Serdiuk, I. V. Sokolenko

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