کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9516673 1633124 2005 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fréchet-Urysohn for finite sets
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات هندسه و توپولوژی
پیش نمایش صفحه اول مقاله
Fréchet-Urysohn for finite sets
چکیده انگلیسی
E. Reznichenko and O. Sipacheva called a space X “Fréchet-Urysohn for finite sets” if the following holds for each point x∈X: whenever P is a collection of finite subsets of X such that every neighborhood of x contains a member of P, then P contains a subfamily that converges to x. We continue their study of this property. We also look at analogous notions obtained by restricting to collections P of bounded size, we discuss connections with topological groups, the αi-properties of A.V. Arhangel'skii, and with a certain topological game.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Topology and its Applications - Volume 151, Issues 1–3, 1 June 2005, Pages 238-259
نویسندگان
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