Closed ball
Summary
A closed ball in a metric space is the set of all points at distance at most a given radius from a given centre.
Where this leads
18 pages build on this one.
- Jung's theorem
- Quermassintegral
- Schoenflies theorem
- Hauptvermutung
- Packing density
- Connected sum
- Covering density
- Radó's theorem on triangulation of surfaces
- Simple homotopy equivalence
- Steiner formula
- Annulus theorem
- Kissing number
- Circle packing
- Brouwer fixed-point theorem
- Tucker's lemma
- Alexander horned sphere
- Sphere packing
- No-retraction theorem
Further reading
- Web https://en.wikipedia.org/wiki/Ball_(mathematics), In general metric spaces
About this page
| Tag | 0Q0H13G8ZB |
|---|---|
| URI | m2://0Q0H13G8ZB |
| Kind | concept |
| Writing | W1 stated |
| MSC | 54E35 |
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What this page needs for W2
- edge instance_of in: at least two examples (0 of 2)
- edge not_instance_of in: at least one non-example (0 of 1)
- edge specializes both: the more general notions and the special cases (0 of 1)
The writing levels say how complete the text of a page is. They do not measure its truth.
What links here
Definitions
Used by
- Jung's theorem
- Quermassintegral
- Schoenflies theorem
- Packing density
- Connected sum
- Covering density
- Simple homotopy equivalence
- Steiner formula
- Kissing number
- Circle packing
- Brouwer fixed-point theorem
- Tucker's lemma
- Sphere packing
- No-retraction theorem