Finite-Dimensional Spaces where the Class of Chebyshev Sets Coincides with the Class of Closed and Monotone Path-Connected Sets

被引:3
|
作者
Bednov, B. B. [1 ,2 ,3 ]
机构
[1] Lomonosov Moscow State Univ, Moscow 119991, Russia
[2] Bauman Moscow Higher Tech Sch Natl Res Univ, Moscow 105005, Russia
[3] Sechenov First Moscow State Med Univ, Moscow 119991, Russia
基金
俄罗斯科学基金会;
关键词
Chebyshev set; convexity; monotone path-connectedness; smoothness; CONVEXITY; SUNS;
D O I
10.1134/S000143462203018X
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In a two-dimensional Banach space X, the class of Chebyshev sets coincides with the class of closed and monotone path-connected sets if and only if X is strictly convex. In a finite-dimensional Banach space X of dimension at least 3, this coincidence occurs if and only if X is smooth and strictly convex.
引用
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页码:505 / 514
页数:10
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