Integral presentation of deviations of rectangular linear means of Fourier series on classes of periodic differentiable functions von O. A. Novikov, O. G. Rovenskaja

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Approximation of classes of Poisson integrals by repeated Fejer sums von O. A. Novikov, O. G. Rovenskaja

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Approximation of Poisson integrals by linear methods von O. A. Novikov, O. G. Rovenskaja, Ju. V. Kozachenko

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