Approximation of the Bergman kernels by rational functions with fixed poles by Chaichenko, S. O., Чайченко, С. О.

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

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Approximations by Fourier Sums on the Sets $L^{ψ} L^{P(∙)}$ by Chaichenko, S. O., Чайченко, С. О., Чайченко, С. О.

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Best approximations of periodic functions in generalized lebesgue spaces by Chaichenko, S. O., Чайченко, С. О., Чайченко, С. О.

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Approximation of classes of analytic functions by a linear method of special form by Serdyuk, A. S., Chaichenko, S. O., Сердюк, А. С., Чайченко, С. О.

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Best Approximations for the Cauchy Kernel on the Real Axis by Savchuk, V. V., Chaichenko, S. O., Савчук, В. В., Чайченко, С. О.

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Approximation by de la Vallée-Poussin operators on the classes of functions locally summable on the real axis by Rukasov, V. I., Chaichenko, S. O., Рукасов, В. І., Чайченко, С. О.

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Approximation of Analytic Periodic Functions by de la Vallée-Poussin Sums by Rukasov, V. I., Chaichenko, S. O., Рукасов, В. І., Чайченко, С. О.

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Approximation of bounded holomorphic and harmonic functions by Fejér means by Savchuk, V. V., Savchuk, M. V., Chaichenko, S. O., Савчук, В. В., Савчук, М. В., Чайченко, С. О.

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Approximation of the Classes $C^{{\bar \psi }} H_{\omega }$ by de la Vallée-Poussin Sums by Rukasov, V. I., Chaichenko, S. O., Рукасов, В. И., Чайченко, С. О., Рукасов, В. И., Чайченко, С. О.

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Approximation of $\overline \psi$-Integrals of Periodic Functions by de la Vallée-Poussin Sums (Low Smoothness) by Rukasov, V. I., Chaichenko, S. O., Рукасов, В. И., Чайченко, С. О., Рукасов, В. И., Чайченко, С. О.

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