Concept information
Preferred term
Hopf theorem
Definition(s)
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The Hopf theorem (named after Heinz Hopf) is a statement in differential topology, saying that the topological degree is the only homotopy invariant of continuous maps to spheres.
(Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Hopf_theorem)
Broader concept(s)
In other languages
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French
URI
http://data.loterre.fr/ark:/67375/PSR-P005GLV2-W
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