Generalized first class selectors for upper semi-continuous set-valued maps in Banach spaces

被引:1
|
作者
Hansell, RW [1 ]
Oncina, L
机构
[1] Univ Connecticut, Dept Math, Storrs, CT 06269 USA
[2] Univ Murcia, Dept Matemat, Murcia 30100, Spain
关键词
measurable selectors; upper semi-continuous maps; point of continuity property;
D O I
10.1007/s10587-005-0010-4
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this paper we deal with weakly upper semi-continuous set-valued maps, taking arbitrary non-empty values, from a non-metric domain to a Banach space. We obtain selectors having the point of continuity property relative to the norm topology for a large class of compact spaces as a domain. Exact conditions under which the selector is of the first Borel class are also investigated.
引用
收藏
页码:145 / 155
页数:11
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