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Approximation of classes of analytic functions by algebraic polynomials and kolmogorov widths

We obtain estimates of the best polynomial approximations, uniform in the closure $B$ of Faber domains of the complex plane $ℂ$, for functions continuous in $B$ and defined by Cauchy-type integrals with densities possessing certain generalized differential properties. We establish estimates exact in...

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Bibliographic Details
Date:	1996
Main Authors:	Romanyuk, V. S., Романюк, В. С.
Format:	Article
Language:	Russian English
Published:	Institute of Mathematics, NAS of Ukraine 1996
Online Access:	https://umj.imath.kiev.ua/index.php/umj/article/view/5351
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Journal Title:	Ukrains’kyi Matematychnyi Zhurnal
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