Local and global continuous ε-selection

被引:16
|
作者
Tsar'kov, I. G. [1 ]
机构
[1] Moscow MV Lomonosov State Univ, Moscow, Russia
基金
俄罗斯基础研究基金会;
关键词
epsilon-selection; monotone path-connected sets; delta-solarity; B-infinite connectedness; B-approximative infinite connectedness; moduli of approximative continuity; BANACH-SPACES; SETS; APPROXIMATION; OPERATOR; SPLINES;
D O I
10.1070/IM8348
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We study properties of sets for which there is a continuous selection from the set of almost-best approximants. We establish relations between local and global selections, give various examples of sets possessing a continuous epsilon-selection, and introduce the notions of moduli of approximative continuity, approximative delta-solarity and uniform approximative continuity. These notions enable us to establish the delta-solarity of sets under certain conditions.
引用
收藏
页码:442 / 461
页数:20
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