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

被引:0
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作者
R. W. Hansell
L. Oncina
机构
[1] University of Connecticut,Dept of Mathematics
[2] Universidad de Murcia,Depto de Matemáticas
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关键词
measurable selectors; upper semi-continuous maps; point of continuity property;
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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.
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页码:145 / 155
页数:10
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