Difference between revisions of "One-point compactification"
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| − | If | + | If Y is a compact, [[Hausdorff space]]; X is a topological space such that Y-X contains one element and the closure of X equals Y; then Y is the one-point compactification of X. |
[[category: mathematics]] | [[category: mathematics]] | ||
Revision as of 03:58, March 21, 2007
If Y is a compact, Hausdorff space; X is a topological space such that Y-X contains one element and the closure of X equals Y; then Y is the one-point compactification of X.