Title of article :
On closed left ideal decompositions of
Author/Authors :
Botha، نويسنده , , Garith and Zelenyuk، نويسنده , , Yevhen Zelenyuk، نويسنده ,
Issue Information :
دوماهنامه با شماره پیاپی سال 2013
Abstract :
Let G be a countably infinite discrete group, let βG be the Stone–Čech compactification of G, and let G ⁎ = β G ∖ G . Let I ( G ) denote the finest decomposition of G ⁎ into closed left ideals of βG with the property that the corresponding quotient space of G ⁎ is Hausdorff. We show that it is consistent with ZFC that, if G can be embedded algebraically into a compact group, then every I ∈ I ( G ) contains 2 c maximal principal left ideals of βG.
Keywords :
Stone–?ech compactification , Ultrafilter , P-point , Maximal principal left ideal , Closed left ideal decomposition
Journal title :
Topology and its Applications
Journal title :
Topology and its Applications