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Results tagged with 3-manifolds
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user 11885
A three-manifold is a space that locally looks like Euclidean three-dimensional space
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Is there a good notion of morphism between orbifolds?
Concerning orbifolds there are a lot of misunderstandings. The original definition is due to Ishiro Satake in two papers:
[Sat1] On a generalization of the notion of manifold, Proceedings of the Nati …
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