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Том 69
№ 9

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Inverse theorems for the approximation of (ψ, β)-Differentiable functions

Stepanets O. I., Zhukina E. I.

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English version (Springer): Ukrainian Mathematical Journal 41 (1989), no. 8, pp 953-959.

Citation Example: Stepanets O. I., Zhukina E. I. Inverse theorems for the approximation of (ψ, β)-Differentiable functions  // Ukr. Mat. Zh. - 1989. - 41, № 8. - pp. 1106–1112.

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