Approximation of double Walsh–Fourier series by means of the matrix transform

UDC 517.5 We discuss the rate of approximation of partial sums of the  double Walsh–Fourier series in the spaces $L^p(G^2),$ $1\leq p <\infty,$ and  $C(G^2)$  by the matrix transform.

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Bibliographic Details
Date:2024
Main Author: Blahota, István
Format: Article
Language:English
Published: Institute of Mathematics, NAS of Ukraine 2024
Online Access:https://umj.imath.kiev.ua/index.php/umj/article/view/7397
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Journal Title:Ukrains’kyi Matematychnyi Zhurnal
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Ukrains’kyi Matematychnyi Zhurnal