Title of article :
Locally pseudocompact topological groups
Author/Authors :
Comfort، نويسنده , , W.W and Trigos-Arrieta، نويسنده , , F.Javier، نويسنده ,
Issue Information :
دوماهنامه با شماره پیاپی سال 1995
Abstract :
A topological group is said to be locally pseudocompact if the identity has a pseudocompact neighborhood (equivalently: if the identity has a local basis of pseudocompact neighborhoods). Such groups are locally bounded in the sense of A. Weil, so each such group G is densely embedded in an essentially unique locally compact group G (called its Weil completion). The authors present necessary and sufficient conditions of local and global nature for a locally bounded group to be locally pseudocompact, as follows. Theorem. If G is a locally bounded group with Weil completionG, then the following conditions are equivalent: 1.
s locally pseudocompact;
is C∗-embedded in G (i.e., βG = βG);
G is C-embedded in G (i.e., υG = υG);
is M-embedded in G (i.e., γG = G);
me nonempty open subsetU of G satisfies β(clGU) = clGU;
very bounded open subset U of G satisfies β(clGU) = clGU.
Keywords :
Locally compact group , Weil completion , Locally pseudocompact group , Hewitt realcompactification , Dieudonné topological completion , Stone-?ech compactification , Pseudocompact space
Journal title :
Topology and its Applications
Journal title :
Topology and its Applications