Hostname: page-component-848d4c4894-ndmmz Total loading time: 0 Render date: 2024-06-09T05:18:32.409Z Has data issue: false hasContentIssue false

Certain Subsets of Products of Metacompact Spaces and Subparacompact Spaces are Realcompact

Published online by Cambridge University Press:  20 November 2018

Phillip Zenor*
Affiliation:
Auburn University, Auburn, Alabama
Rights & Permissions [Opens in a new window]

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.

We will say that a space X has property (*) if and only if each discrete subset of X is realcompact; i.e., the cardinality of each discrete subset of X is nonmeasurable. In [8], Shirota shows that a completely regular T1-space X is realcompact if and only if X has property (*) and X is complete with respect to some uniformity. In [7], Moran, using measure theoretic techniques, shows that any normal metacompact T1-space with property (*) is realcompact.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1972

References

1. Burke, D. K., On subparacompact spaces, Proc. Amer. Math. Soc. 23 (1969), 655663.Google Scholar
2. Creede, G., Semi-stratifiable spaces, Topology Conference, Ariz. State Univ., Tempe, Ariz. (1967), 318324.Google Scholar
3. Gillman, L. and Jerison, M., Rings of continuous functions (VanNostrand, Princeton, 1960).Google Scholar
4. Kelley, J., General topology (VanNostrand, Princeton, 1955).Google Scholar
5. McAuley, L. F., A note on collectionwise normality and paracompactness, Proc. Amer. Math. Soc. 9 (1958), 796799.Google Scholar
6. Moore, R. L., Foundations of point set topology, Amer. Math. Soc. Col., Publ. XIII, New York, 1932.Google Scholar
7. Moran, W., Measures on metacompact spaces, Proc. London Math. Soc. III 20 (1970), 507524.Google Scholar
8. Shirota, T., A class of topological spaces, Osaka J. Math. 4, (1952), 2340.Google Scholar