Title of article
Countable paracompactness versus normality in ω21
Author/Authors
Kemoto، نويسنده , , Nobuyuki and Smith، نويسنده , , Kerry D. and Szeptycki، نويسنده , , Paul J.، نويسنده ,
Issue Information
دوماهنامه با شماره پیاپی سال 2000
Pages
14
From page
141
To page
154
Abstract
We will see that:
ZFC, for each subspace X⫅ω21, the following are equivalent;
is normal,
is countably paracompact and strongly collectionwise Hausdorff,
is expandable.
der a variety of different set-theoretic assumptions (including V = L and PMEA) all countably paracompact subspaces of ω21 are normal.
l subspaces of ω21 are collectionwise Hausdorff.
Keywords
Collectionwise Hausdorff , Strongly collectionwise Hausdorff , V = L , Countably paracompact , PMEA , normal
Journal title
Topology and its Applications
Serial Year
2000
Journal title
Topology and its Applications
Record number
1576239
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