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On the order of local approximation of functions by trigonometric polynomials that are partial sums of averaging operators

We study the order of polynomial approximations of periodic functions on intervals which are internal with respect to the main interval of periodicity and on which these functions are sufficiently smooth. The estimates obtained contain parameters which characterize the smoothness and alternation of...

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Datum:	1997
Hauptverfasser:	Sukhorolskyi, M. A., Сухорольський, М. А.
Format:	Artikel
Sprache:	Ukrainisch Englisch
Veröffentlicht:	Institute of Mathematics, NAS of Ukraine 1997
Online Zugang:	https://umj.imath.kiev.ua/index.php/umj/article/view/5052
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Назва журналу:	Ukrains’kyi Matematychnyi Zhurnal
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