Nonlinear approximation of the classes F q,rof functionsof several variables in the integral metrics von A. L. Shidlich

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Direct and inverse approximation theorems in the Besicovitch–Musielak–Orlicz spaces of almost periodic functions von S. O. Chaichenko, A. L. Shidlich, T. V. Shulyk

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Approximation of 2π-periodic functions by Taylor—Abel—Poisson operators in the integral metric von J. Prestin, V. V. Savchuk, A. L. Shidlich

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