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rpotrie
  • Member for 14 years, 4 months
  • Last seen more than 2 years ago
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answer
25
Curvature of a Lie group
Jul 9, 2010
answer
24
Sets with positive Lebesgue measure boundary
May 26, 2010
answer
15
Hausdorff dimension of the boundary of an open set in the Euclidean space - lower bound
Sep 30, 2010
question
13
Constructing 4-manifolds with fundamental group with a given presentation.
Jul 1, 2010
question
12
Finite covers of hyperbolic surfaces and the `second systole´
Mar 13, 2017
answer
12
Why do the homology groups capture holes in a space better than the homotopy groups?
May 15, 2010
question
10
Topological conjugacy between homeomorphisms and diffeomorphisms
May 26, 2010
question
10
Topological dimension versus cohomological dimension
Oct 24, 2010
answer
10
Is the composition of non-wandering maps still non-wandering?
Jul 1, 2010
answer
8
What is the oldest open problem in mathematics?
Jun 4, 2010