Approximative properties of the generalized Poisson integrals on the classes of functions, determined by a modulus of continuity von Ju. I. Kharkevich

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Asymptotic expansions of upper bounds of deviations of functions of the class from their generalized Poisson integrals von Ju. I. Kharkevich

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On approximation of the quasi-smooth functions by their Poisson-type integrals von Ju. I. Kharkevich

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Exact equalities for approximation of functions from the Sobolev class by their generalized Poisson integrals von Ju. I. Kharkevich

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Approximative properties of Abel–Poisson-type operators on the general-ized Hцlder classes von Ju. I. Kharkevich, A. G. Khanin

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