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Lower bounds for the deviations of the best linear methods of approximation of continuous functions by trigonometric polynomials

In the case of uniform approximation of continuous periodic functions of one variable by trigonometric polynomials, we obtain lower bounds for the Jackson constants of the best linear methods of approximation.

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Bibliographic Details
Date:	2012
Main Authors:	Pichugov, S. A., Пичугов, С. А.
Format:	Article
Language:	Russian English
Published:	Institute of Mathematics, NAS of Ukraine 2012
Online Access:	https://umj.imath.kiev.ua/index.php/umj/article/view/2606
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Journal Title:	Ukrains’kyi Matematychnyi Zhurnal
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