Approximation of the Functions in Weighted Lebesgue Spaces With Variable Exponent

Abstract

In the present work, we investigate the approximation problems of the functions by Fejér, and Zygmund means of Fourier trigonometric series in weighted Lebesgue spaces with variable exponents and of the functions by Fejér and Abel–Poisson sums of Faber series in weighted Smirnov classes with variable exponents defined on simply connected domains with a Dini-smooth boundary of the complex plane. © 2017, © 2017 Informa UK Limited, trading as Taylor & Francis Group.