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Estimate for the Best Approximation of Summable Functions of Two Variables in Terms of Fourier Coefficients

An upper bound for the best approximation of periodic summable functions of two variables in the metric of L is obtained in terms of Fourier coefficients. Functions that can be represented by trigonometric series with coefficients satisfying a two-dimensional analog of the Boas–Telyakovskii conditio...

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Datum:	2004
Hauptverfasser:	Kononovych, T. O., Кононович, Т. О.
Format:	Artikel
Sprache:	Ukrainisch Englisch
Veröffentlicht:	Institute of Mathematics, NAS of Ukraine 2004
Online Zugang:	https://umj.imath.kiev.ua/index.php/umj/article/view/3727
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!
Назва журналу:	Ukrains’kyi Matematychnyi Zhurnal
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