Approximate properties of Abel-Poisson integrals on classes of differentiable functions defined by moduli of continuity

Authors

  • Yu.I. Kharkevych Lesya Ukrainka Volyn National University, 13 Voli avenue, 43025, Lutsk, Ukraine
  • T.A. Stepaniuk Institute of Mathematics, National Academy of Sciences of Ukraine, 3 Tereschenkivska str., 01601, Kyiv, Ukraine
https://doi.org/10.15330/cmp.15.1.286-294

Keywords:

modulus of continuity, Abel-Poisson integral, uniform metric
Published online: 2023-06-30

Abstract

The paper deals with the problem of approximation in the uniform metric of $W^{1}H_{\omega}$ classes using one of the classical linear summation methods for Fourier series given by a set of functions of a natural argument, namely, using the Abel-Poisson integral. At the same time, emphasis is placed on the study of the asymptotic behavior of the exact upper limits of the deviations of the Abel-Poisson integrals from the functions of the mentioned class.

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How to Cite
(1)
Kharkevych, Y.; Stepaniuk, T. Approximate Properties of Abel-Poisson Integrals on Classes of Differentiable Functions Defined by Moduli of Continuity. Carpathian Math. Publ. 2023, 15, 286-294.