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Rate of convergence of a group of deviations on sets of $\bar{\psi}$−integrals

We study functionals that characterize the strong summation of Fourier series on sets of $\bar{\psi}$−integrals in the uniform and integral metrics. As a result, we obtain estimates exact in order for the best approximations of functions from these sets by trigonometric polynomials.

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Bibliographic Details
Date:	1999
Main Authors:	Stepanets, O. I., Степанец, А. И.
Format:	Article
Language:	Russian English
Published:	Institute of Mathematics, NAS of Ukraine 1999
Online Access:	https://umj.imath.kiev.ua/index.php/umj/article/view/4771
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Journal Title:	Ukrains’kyi Matematychnyi Zhurnal
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