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Best uniform approximation of a continuous compact-valued mapping by sets of continuous single-valued mappings

We prove existence theorems and establish necessary and sufficient conditions and criteria for an extremal element for the problem of the best uniform approximation of a continuous compact-valued mapping by sets of continuous single-valued mappings.

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Bibliographic Details
Date:	2005
Main Authors:	Hudyma, U. V., Гудима, У. В.
Format:	Article
Language:	Ukrainian English
Published:	Institute of Mathematics, NAS of Ukraine 2005
Online Access:	https://umj.imath.kiev.ua/index.php/umj/article/view/3712
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Journal Title:	Ukrains’kyi Matematychnyi Zhurnal
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