کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4659195 | 1344310 | 2012 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Another note on the class of paracompact spaces whose product with every paracompact space is paracompact
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موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
هندسه و توپولوژی
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چکیده انگلیسی
The paper contains the following two results:(1) If X is a paracompact space and M is a metric space such that X can be embedded in Mω1 in such a way that the projections of X onto initial countably many coordinates are closed, then the product X×Y is paracompact for every paracompact space Y if and only if the first player of the G(DC,X) game, introduced by Telgarsky, see Telgarsky (1975) [22], has a winning strategy.(2) If X is paracompact space, Y is a closed image of X and the first player of the G(DC,X) game has a winning strategy then also the first player of the G(DC,Y) game has a winning strategy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Topology and its Applications - Volume 159, Issue 6, 1 April 2012, Pages 1640-1644
Journal: Topology and its Applications - Volume 159, Issue 6, 1 April 2012, Pages 1640-1644