Normality and hereditary countable paracompactness of Pixley-Roy hyperspaces
In this paper, we shall discuss -products of paracompact Čech-scattered spaces and show the following: (1) Let be a -product of paracompact Čech-scattered spaces. If has countable tightness, then it is collectionwise normal. (2) If is a -product of first countable, paracompact (subparacompact) Čech-scattered spaces, then it is shrinking (subshrinking).
In this paper, we discuss covering properties in countable products of Čech-scattered spaces and prove the following: (1) If is a perfect subparacompact space and is a countable collection of subparacompact Čech-scattered spaces, then the product is subparacompact and (2) If is a countable collection of metacompact Čech-scattered spaces, then the product is metacompact.
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