Isaac Gorelic

Isaac Gorelic
The $G_\delta $-topology and incompactness of $\omega ^\alpha $

Comment.Math.Univ.Carolinae 37,3 (1996) 615-618.

Abstract:We establish a relation between covering properties (e.g. Lindel\"of degree) of two standard topological spaces (Lemmas 4 and 5). Some cardinal inequalities follow as easy corollaries.

Keywords: Lindel\"of degree, $G_\delta $ topology, cardinal functions
AMS Subject Classification: 54D20, 45B10

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Isaac Gorelic The $G_\delta $-topology and incompactness of $\omega ^\alpha $

Isaac Gorelic
The $G_\delta $-topology and incompactness of $\omega ^\alpha $