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Results tagged with 3-manifolds
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user 25511
A three-manifold is a space that locally looks like Euclidean three-dimensional space
26
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answers
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How to get convinced that there are a lot of 3-manifolds?
My question is rather philosophical : without using advanced tools as Perlman-Thurston's geometrisation, how can we get convinced that the class of closed oriented $3$-manifolds is large and that simp …
- 2,696