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Extremal Problems of Approximation Theory in Linear Spaces

We propose an approach that enables one to pose and completely solve main extremal problems in approximation theory in abstract linear spaces. This approach coincides with the traditional one in the case of approximation of sets of functions defined and square integrable with respect to a given σ-ad...

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Bibliographic Details
Date:	2003
Main Authors:	Stepanets, O. I., Степанец, А. И.
Format:	Article
Language:	Russian English
Published:	Institute of Mathematics, NAS of Ukraine 2003
Online Access:	https://umj.imath.kiev.ua/index.php/umj/article/view/4008
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Journal Title:	Ukrains’kyi Matematychnyi Zhurnal
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