15

Questions

 
8
votes
2
answers
274
views

Converse to Milnor’s theorem on manifolds with nonnegative Ricci curvature.

may 9 at 0:23 Lee Mosher 5,8061926

 
3
votes
1
answer
92
views

Reduction of antisymmetric complex matrices

apr 30 at 13:45 Jim Humphreys 26k3782

2
5
votes
1
answer
140
views

Fixing a proof of the systolic inequality for higher genus surfaces

apr 9 at 11:00 katz 1,264112

5
13
votes
1
answer
273
views

Algebraic characterization of the curvature operator of symmetric spaces

jan 26 at 14:10 Robert Bryant 21.8k37597

3
4
votes
0
answers
125
views

How to generate a random (Weyl) curvature operator ?

jan 21 at 4:37 Thomas Richard 1,4521411

1
3
votes
1
answer
61
views

Dependence of the blow-up time of existence of an ODE with respect to initial condition.

nov 28 at 10:43 Pietro Majer 19.7k12469

3
10
votes
3
answers
423
views

Manifold whose universal covering is a sphere but which is not a space form?

sep 18 at 21:05 Agol 23.9k13384

1
2
votes
0
answers
119
views

How do you call a map which sends convergent sequences to pre-compact ones ?

may 10 12 at 8:53 Thomas Richard 1,4521411

1
9
votes
0
answers
238
views

Is it overkill to invoke Kirszbraun theorem to prove the following fact ?

feb 29 12 at 13:25 Thomas Richard 1,4521411

2
7
votes
3
answers
452
views

Complexity of matching red and blue points in the plane.

jan 28 12 at 21:29 JeffE 260110

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