Facts
Citation
PublisherWikimedia Foundation
URLhttps://en.wikipedia.org/wiki/Hairy_ball_theorem
Source TypeEncyclopedia
Assessment
Reliability Tier2
Sources
Hairy Ball Theorem (Wikipedia)
Wikimedia Foundation- publisher identity, en.wikipedia.org masthead
self-assessed, general encyclopedia
The hairy ball theorem of algebraic topology (formally, the Sphere Vector Field Theory, sometimes called the hedgehog theorem) states that there is no non-vanishing continuous tangent vector field on even-dimensional n-spheres.
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- editorial reliability assessment, general encyclopedia
View the Source Claims Backed By This Source (10 claims)
This source backs 10 claims across the atlas. As facts: 7 well-attested. As cited relationships: 1 holds. Plus 2 entities citing it as a general reference with no single fact or relationship attached.
Disposition By Topic
- Theorems, 6 claims: 3 well-attested, 1 holds, 2 general references.
- Sources, 4 claims: 4 well-attested.
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