Talk:Q838611
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Autodescription — ball (Q838611)
description: in mathematics, space bounded by a sphere
- Useful links:
- View it! – Images depicting the item on Commons
- Report on constraint conformation of “ball” claims and statements. Constraints report for items data
For help about classification, see Wikidata:Classification.
- Parent classes (classes of items which contain this one item)
- ball (Q838611)
- solid figure (Q937946)
- geometric figure (Q123410761)
- compact space (Q381892)
- 3-manifold (Q526901)
- three-dimensional domain (Q123410718)
- convex set (Q193657) (∇)→
- hyperball (Q3776995)
- solid figure (Q937946)
- ball (Q838611)
- Subclasses (classes which contain special kinds of items of this class)
- ⟨
ball⟩ on wikidata tree visualisation (external tool)(depth=1) - Generic queries for classes
- See also
- This documentation is generated using
{{Item documentation}}.
part of (P361) Q838611 or not? --Fractaler (talk) 14:51, 16 December 2016 (UTC)
Notified participants of WikiProject Mathematics- @Fractaler: I think we should seperate ball (Q838611) into ball and closed ball: and . Bigbossfarin (talk) 11:17, 7 October 2018 (UTC)
- @Fractaler, Bigbossfarin: Maybe something more specific « has boundary an object of kind … » ( in the definition of Boundary_(topology) (maybe qualified if the topology) ? This implies we don’t really have to bother wether or not the boundaries are included or not in the object). « has part » would need to define what is a part of a set in a topology. author TomT0m / talk page 13:21, 7 October 2018 (UTC)
![{\displaystyle B_{r}[p]=\{x\in M\mid d(x,p)\leq r\}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/888860036b01dd72518e404949109db08d377983)