کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5777940 1633054 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Finite-valued multiselections
ترجمه فارسی عنوان
چندین انتخاب ارزشمند
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات هندسه و توپولوژی
چکیده انگلیسی
It is shown that a connected space X is weakly orderable provided it has a finite-valued Vietoris continuous multiselection for its hyperspace F(X) of nonempty closed subsets. In fact, for connected spaces, every such multiselection is at most two-point valued, and X is compact whenever the multiselection is not singleton-valued at some element of F(X). Complementary to this result is a characterisation of weak orderability of connected spaces in terms of “proper” Vietoris continuous multiselections for hyperspaces of finite sets.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Topology and its Applications - Volume 225, 1 July 2017, Pages 46-52
نویسندگان
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