No CrossRef data available.
Article contents
A Compactification with θ-Continuous Lifting Property
Published online by Cambridge University Press: 20 November 2018
Extract
Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.
1. Let X be a topological space, and let X′ be the set of all non-convergent ultrafilters on X. If A ⊆ X, let , and A* = A ∪ A′. If
is a filter on X such that
for all
, then let.
be the filter on X* generated by
; let
be the filter on X* generated by
. If
exists then
; otherwise,
.
A convergence is defined on X* as follows: If x ∈ X, then a filter A → x in X* if and only if , where Vx(x) is the X neighborhood filter at x;
, then
in X* if and only if
.
- Type
- Research Article
- Information
- Copyright
- Copyright © Canadian Mathematical Society 1982
References
1.
Dickman, R. F. and Porter, J. R., 0-perfect and O-absolutely closed functions, Ill. J. Math.
21 (1977), 42–60.Google Scholar
2.
Gazik, R. J., Regularity of Richardson s compactification, Can. J. Math.
26 (1974), 1289–1293.Google Scholar
3.
Richardson, G. D., A Stone-Cech compactification for limit spaces, Proc. Amer. Math. Soc.
25 (1970), 403–404.Google Scholar