Alexandroff extension
given a space X, the space X ⊔ {∞}, topologized so that a set containing ∞ is open iff its complement is closed compact in X
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Alexandroff extension
Summary
Alexandroff extension is a compactification[1]. It draws 64 Wikipedia views per month (compactification category, ranking #1 of 2).[2]
Key Facts
- Alexandroff extension's instance of is recorded as compactification[3].
- Pavel Aleksandrov is named after Alexandroff extension[4].
- Alexandroff extension's Freebase ID is recorded as /m/03hfsrt[5].
- Alexandroff extension's studied by is recorded as general topology[6].
- Alexandroff extension's MathWorld ID is recorded as One-PointCompactification[7].
- Alexandroff extension's nLab ID is recorded as one-point compactification[8].
- Alexandroff extension's maintained by WikiProject is recorded as WikiProject Mathematics[9].
- Alexandroff extension's Microsoft Academic ID is recorded as 98575774[10].
- Alexandroff extension's Encyclopedia of Mathematics article ID is recorded as Aleksandrov_compactification[11].
- Alexandroff extension's Great Russian Encyclopedia portal ID is recorded as kompaktifikatsiia-aleksandrova-1aaa4a[12].
Why It Matters
Alexandroff extension draws 64 Wikipedia views per month (compactification category, ranking #1 of 2).[2] It has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[13] It is known by 20 alternative names across languages and contexts.[14]