Alexandroff extension

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Notion

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Science and technology

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What Wikipedia says

In the mathematical field of topology, the Alexandroff extension is a way to extend a noncompact topological space by adjoining a single point in such a way that the resulting space is compact. It is named after the Russian mathematician Pavel Alexandroff.

Excerpt from the Wikipedia article “Alexandroff extension”, under the CC BY-SA 4.0 license. Read the article on Wikipedia