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Selim Ghazouani

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25 votes

How to get convinced that there are a lot of 3-manifolds?

at.algebraic-topology gt.geometric-topology differential-topology smooth-manifolds 3-manifolds asked Oct 6, 2015 at 13:09
mathoverflow.net

22 votes

Flows of vector fields and diffeomorphisms isotopic to the identity

dg.differential-geometry asked Jan 3, 2014 at 15:11
mathoverflow.net

17 votes

Local homeomorphisms which are not covering map?

general-topology algebraic-topology examples-counterexamples covering-spaces asked Jul 19, 2013 at 6:03
math.stackexchange.com

14 votes

Compact manifolds with big mapping class group

at.algebraic-topology gr.group-theory gt.geometric-topology mapping-class-groups asked Feb 4, 2017 at 12:45
mathoverflow.net

13 votes

Closure of the orbits of the $SL(2,\mathbb{Z})$-action on $\mathbb{R}^2$

reference-request matrices ds.dynamical-systems ergodic-theory group-actions asked Nov 17, 2014 at 11:26
mathoverflow.net

11 votes

Minimal, uniquely ergodic but not Lebesgue-ergodic?

ds.dynamical-systems ergodic-theory asked Oct 12, 2018 at 14:15
mathoverflow.net

11 votes

Topological rigidity for negatively curved manifolds?

hyperbolic-geometry rigidity negative-curvature asked Jan 24, 2014 at 16:02
mathoverflow.net

11 votes

Negative sectional curvature and constant curvature

riemannian-geometry big-list hyperbolic-geometry asked Jun 7, 2013 at 11:11
mathoverflow.net

10 votes

When are those subgroups of $\mathrm{SL}(2, \mathbb{C})$ discrete?

rt.representation-theory matrices hyperbolic-geometry complex-dynamics asked Jan 16, 2014 at 14:52
mathoverflow.net

10 votes

Examples of non isometric surfaces having the same curvature function

riemannian-geometry asked Sep 22, 2014 at 8:23
mathoverflow.net

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