Hairy ball theorem

Proper noun

Definitions

1.Proper nounA theorem stating that there is no nonvanishing continuous tangent vector field on the sphere; colloquially, that "you can't comb a hairy ball flat without creating a cowlick".

Synonyms

banach-tarski paradox closed ball poincaré conjecture monsky's theorem belyi's theorem ballean hadwiger's theorem gauss-bonnet theorem ball open ball handle hopfion

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