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Robert Bell's user avatar
Robert Bell's user avatar
Robert Bell's user avatar
Robert Bell
  • Member for 13 years, 3 months
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All Questions Answers
Score Newest
answer
43
Non embedding of $Y\times Y$ into $\mathbb{R}^3$
Apr 13, 2018
answer
20
How to prove the connected sum of two closed aspherical n-manfolds (n >2) is not asperical?
Nov 21, 2010
answer
12
Braid groups acting on CAT(0)-complexes
Oct 19, 2010
answer
8
Contracting a geodesic on a space of curvature less than 1
Jul 15, 2010
answer
7
What is this group, $A_n = \langle a_1,\ldots a_n \,|\, a_i a_j = a_ja_i \mbox{ if } |i-j| \geq 2\rangle$?
Jul 30, 2018
answer
6
Orders of products of permutations
Sep 1, 2010
answer
5
Compelling evidence that two basepoints are better than one
Oct 3, 2010
answer
4
Books for hyperbolic geometry ( surfaces ) with exercises?
Oct 2, 2010
answer
4
Reidemeister-Schreier Method for Finding Stabilizer of an Element in a Group Action
Jun 6, 2011
answer
4
Consequences of Serre's property FA
May 20, 2015
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11
Finding all group homomorphisms of $S_n\to\mathbb{C}^*$ and $A_n\to\mathbb{C}^*$
11
Manifold acted on by every finite group
8
Teichmüller spaces via representations
7
If $(a_{n})$ is increasing, is $u_{n}=\frac{a_{1}+\cdots+a_{n}}{n}$ increasing as well?
6
Why does this converge to $\pi/4$?

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