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1. Some inequalities for Cesàro means of double Vilenkin-Fourier series.

Author

Tepnadze, T. and Persson, L. E.

Subjects
*VARIATIONAL inequalities (Mathematics), *FOURIER series, *MATHEMATICAL functions, *MATHEMATICS, *APPROXIMATION theory
Abstract

In this paper, we state and prove some new inequalities related to the rate of Lp approximation by Cesàro means of the quadratic partial sums of double Vilenkin-Fourier series of functions from Lp. [ABSTRACT FROM AUTHOR]

Published
2018
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