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Том 69
№ 12

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Best simultaneous approximation of periodic functions and their derivatives by trigonometric polynomials

Sorich V. A.

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English version (Springer): Ukrainian Mathematical Journal 36 (1984), no. 6, pp 603-608.

Citation Example: Sorich V. A. Best simultaneous approximation of periodic functions and their derivatives by trigonometric polynomials // Ukr. Mat. Zh. - 1984. - 36, № 6. - pp. 791 – 797.

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