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Widths and best approximations for classes of convolutions of periodic functions

We establish exact lower bounds for the Kolmogorov widths in the metrics ofC andL for classes of functions with high smoothness; the elements of these classes are sourcewise-representable as convolutions with generating kernels that can increase oscillations. We calculate the exact values of the bes...

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Datum:	1999
Hauptverfasser:	Serdyuk, A. S., Сердюк, А. С.
Format:	Artikel
Sprache:	Ukrainisch Englisch
Veröffentlicht:	Institute of Mathematics, NAS of Ukraine 1999
Online Zugang:	https://umj.imath.kiev.ua/index.php/umj/article/view/4653
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!
Назва журналу:	Ukrains’kyi Matematychnyi Zhurnal
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