On Hausdorff compactifications of non-locally compact spaces
Let X be a completely regular, Hausdorff space and let R be the set of points in X which do not possess compact neighborhoods. Assume R is compact. If X has a compactification with a countable remainder, then so does the quotient X/R, and a countable compactificatlon of X/R implies one for X−R. A ch...
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Format: | Article |
Language: | English |
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Wiley
1979-01-01
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Series: | International Journal of Mathematics and Mathematical Sciences |
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Online Access: | http://dx.doi.org/10.1155/S0161171279000375 |
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author | James Hatzenbuhler Don A. Mattson |
author_facet | James Hatzenbuhler Don A. Mattson |
author_sort | James Hatzenbuhler |
collection | DOAJ |
description | Let X be a completely regular, Hausdorff space and let R be the set of points in X which do not possess compact neighborhoods. Assume R is compact. If X has a compactification with a countable remainder, then so does the quotient X/R, and a countable compactificatlon of X/R implies one for X−R. A characterization of when X/R has a compactification with a countable remainder is obtained. Examples show that the above implications cannot be reversed. |
format | Article |
id | doaj-art-2062212a175f4fe187e80f1523fae7c6 |
institution | Kabale University |
issn | 0161-1712 1687-0425 |
language | English |
publishDate | 1979-01-01 |
publisher | Wiley |
record_format | Article |
series | International Journal of Mathematics and Mathematical Sciences |
spelling | doaj-art-2062212a175f4fe187e80f1523fae7c62025-02-03T01:13:13ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04251979-01-012348148610.1155/S0161171279000375On Hausdorff compactifications of non-locally compact spacesJames Hatzenbuhler0Don A. Mattson1Department of Mathematics, Moorhead State University, Moorhead 56560, Minnesota, USADepartment of Mathematics, Moorhead State University, Moorhead 56560, Minnesota, USALet X be a completely regular, Hausdorff space and let R be the set of points in X which do not possess compact neighborhoods. Assume R is compact. If X has a compactification with a countable remainder, then so does the quotient X/R, and a countable compactificatlon of X/R implies one for X−R. A characterization of when X/R has a compactification with a countable remainder is obtained. Examples show that the above implications cannot be reversed.http://dx.doi.org/10.1155/S0161171279000375countable remainderscompactifications non-locally compact spacescomponents of βX - X. |
spellingShingle | James Hatzenbuhler Don A. Mattson On Hausdorff compactifications of non-locally compact spaces International Journal of Mathematics and Mathematical Sciences countable remainders compactifications non-locally compact spaces components of βX - X. |
title | On Hausdorff compactifications of non-locally compact spaces |
title_full | On Hausdorff compactifications of non-locally compact spaces |
title_fullStr | On Hausdorff compactifications of non-locally compact spaces |
title_full_unstemmed | On Hausdorff compactifications of non-locally compact spaces |
title_short | On Hausdorff compactifications of non-locally compact spaces |
title_sort | on hausdorff compactifications of non locally compact spaces |
topic | countable remainders compactifications non-locally compact spaces components of βX - X. |
url | http://dx.doi.org/10.1155/S0161171279000375 |
work_keys_str_mv | AT jameshatzenbuhler onhausdorffcompactificationsofnonlocallycompactspaces AT donamattson onhausdorffcompactificationsofnonlocallycompactspaces |