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Estimates for bilinear approximations of the classes TeX of periodic functions of two variables

We obtain exact-order estimates for the best bilinear approximations of the classes $S_{p, \theta}^{\Omega} B$ of periodic functions of two variables in the space $L_q$ for some relations between the parameters $p, q, \theta$.

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Bibliographic Details
Date:	2012
Main Authors:	Solich, K. V., Соліч, К. В.
Format:	Article
Language:	Ukrainian English
Published:	Institute of Mathematics, NAS of Ukraine 2012
Online Access:	https://umj.imath.kiev.ua/index.php/umj/article/view/2644
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Journal Title:	Ukrains’kyi Matematychnyi Zhurnal
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