Title of article :
Tight points of Pixley–Roy hyperspaces
Author/Authors :
Bella، نويسنده , , Angelo and Sakai، نويسنده , , Masami، نويسنده ,
Issue Information :
دوماهنامه با شماره پیاپی سال 2013
Abstract :
In this paper, continuing with the study of tight spaces in [8–10], we investigate tight points of Pixley–Roy hyperspaces. We introduce the notion of a supertight space, and show that PR ( X ) is tight if and only if X is supertight.
Keywords :
Tight point , Supertight point , Pixley–Roy , Countable tightness , Fan-tightness
Journal title :
Topology and its Applications
Journal title :
Topology and its Applications
