|
|
|
|
|
Volume 29 Number 1 2006 |
|
Relatively Absolutely Countably Compact Spaces
Yan-Kui Song
Abstract.
A subspace Y of a space X is absolutely
countably compact(=acc) (strongly absolutely countably
compact(=strongly acc)) in X if for every open cover U of X and every dense subspace
D⊂X (respectively, D⊂Y) there exists
a finite subset F⊂D such that
Y⊂St(F,U), where
St(F,U)=∪{U∈U:U∩F&ne∅}. In this
paper, we investigate the relationships between these spaces and other
starcompact spaces by giving some examples, and also study topological
properties of relatively absolutely countably compact spaces.
2000 Mathematics Subject Classification: 54A45, 54D20.
Full text: PDF
|
|
|
|
|
|
|
|
|