rpotrie

Uruguay

http://www.cmat.edu.uy/~rpotrie/

http://coloquiooleis.wordpress.com/

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Constructing 4-manifolds with fundamental group with a given presentation.

gt.geometric-topology asked Jul 1, 2010 at 21:54

mathoverflow.net

12 votes

Finite covers of hyperbolic surfaces and the `second systole´

gt.geometric-topology hyperbolic-geometry fundamental-group covering-spaces systolic-geometry asked Mar 13, 2017 at 20:02

mathoverflow.net

10 votes

Topological conjugacy between homeomorphisms and diffeomorphisms

ds.dynamical-systems asked May 26, 2010 at 17:29

mathoverflow.net

10 votes

Topological dimension versus cohomological dimension

gn.general-topology at.algebraic-topology asked Oct 24, 2010 at 17:09

mathoverflow.net

5 votes

Entropy conjecture for flows

ds.dynamical-systems gt.geometric-topology entropy asked Sep 23, 2010 at 19:52

mathoverflow.net

Top Answers

Sets with positive Lebesgue measure boundary

mathoverflow.net

Curvature of a Lie group

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Hausdorff dimension of the boundary of an open set in the Euclidean space - lower bound

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Why do the homology groups capture holes in a space better than the homotopy groups?

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Is the composition of non-wandering maps still non-wandering?

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What is the oldest open problem in mathematics?

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Do maps have flows?

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Homomorphisms from $\mathbb{R}$ to $\mathrm{Homeo}^+(\mathbb{R})$, or "fractional iterations"

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local behavior of a finite Borel measure

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Existence of a vector field with a finite number of limit cycles.

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Examples of transformations which are weak-mixing but not strong-mixing

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Product Measure Only Possible Measure?

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Are there good product rules on the $k$-sphere?

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Subspaces of finite codimension in Banach spaces

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Diffeomorphisms of the sphere conjugate to a rotation

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The importance of Poincare Conjecture or SPC4?

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