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Daniel Valenzuela

Student in Bonn

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  • Member for 4 years, 10 months
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  • Last seen Aug 20 '18 at 21:15

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Top posts (251) All Questions Answers | Votes Newest

11 Two point topological space Sep 23 '14
8 Why can we always take the zero section of a vector bundle? Apr 1 '15
8 What closed 3-manifolds have fundamental group $\Bbb Z$? Dec 14 '15
7 Having difficulties showing the triangle inequality of metric in the plane Oct 22 '14
7 A map which is trivial on homology but not on cohomology? Feb 6 '15
6 Codimension 1 homology represented by Embedded Submanifold Sep 27 '14
6 Is $\mathbb{R}^n$ properly homotopy equivalent to $\mathbb{R}^m$ if $n \neq m$? Jun 9 '15
5 Why “singular” in “singular homology/cohomology”? Jul 23 '15
5 How do I draw this weird space Sep 24 '14
5 How to show the covering space of an orientable manifold is orientable Dec 8 '14
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