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On the Lebesgue Inequality on Classes of $\bar{\psi}$ -Differentiable Functions

We consider the deviations of Fourier sums in the spaces ${C^{\bar{\psi}}}$. The estimates of these deviations are expressed via the best approximations of the $\bar{\psi}$ -derivatives of functions in the Stepanets sense. The sequences $\bar{\psi} = (ψ_1, ψ_2)$ are quasiconvex.

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Bibliographic Details
Date:	2013
Main Authors:	Zaderei, N. N., Zaderei, P. V., Задерей, Н. М., Задерей, П. В.
Format:	Article
Language:	Ukrainian English
Published:	Institute of Mathematics, NAS of Ukraine 2013
Online Access:	https://umj.imath.kiev.ua/index.php/umj/article/view/2469
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Journal Title:	Ukrains’kyi Matematychnyi Zhurnal
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