Title of article
Subnormality in ω12
Author/Authors
Kemoto، نويسنده , , Nobuyuki، نويسنده ,
Issue Information
دوماهنامه با شماره پیاپی سال 2002
Pages
10
From page
287
To page
296
Abstract
A space X is said to be subnormal (=δ-normal) if every pair of disjoint closed sets can be separated by disjoint Gδ-sets. It is known that the product space (ω1+1)×ω1 is neither normal nor subnormal, moreover the subspace A×B of ω12 is not normal whenever A and B are disjoint stationary sets in ω1. We will discuss on subnormality of subspaces of ω12.
Keywords
Subnormal , Subshrinking , Collectionwise subnormal
Journal title
Topology and its Applications
Serial Year
2002
Journal title
Topology and its Applications
Record number
1576495
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