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
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات هندسه و توپولوژی
پیش نمایش صفحه اول مقاله
Another note on the class of paracompact spaces whose product with every paracompact space is paracompact
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