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

• Datum: 2024
• 1. Verfasser: Blahota, István
• Format: Artikel
• Sprache: Englisch
• Veröffentlicht: Institute of Mathematics, NAS of Ukraine 2024
• Online Zugang: https://umj.imath.kiev.ua/index.php/umj/article/view/7397
• Назва журналу: Ukrains’kyi Matematychnyi Zhurnal

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.