User Jean Raimbault

23 votes

1 answer

1k views

Kaplansky's unit conjecture and unique products

asked Jun 24, 2014 at 9:26

15 votes

1 answer

358 views

Are hyperbolic $n$-manifolds recursively enumerable?

asked Jan 5, 2022 at 12:58

14 votes

1 answer

959 views

The number of involutions in a permutation group

asked Feb 8, 2018 at 17:49

13 votes

3 answers

2k views

2-torsion in class groups of cubic fields

asked Jul 7, 2016 at 14:20

8 votes

0 answers

343 views

Polynomial growth without Gromov's theorem

asked Feb 26, 2015 at 18:32

8 votes

1 answer

282 views

Length and curvature for closed curves in negatively curved spaces

asked May 20, 2020 at 9:53

8 votes

1 answer

1k views

Fundamental units of imaginary quartic fields

asked Jul 22, 2013 at 13:57

8 votes

2 answers

495 views

How close can closed geodesics be?

asked Aug 19, 2013 at 15:12

7 votes

2 answers

940 views

Subgroups of $SL_2(F)$ generated by unipotent elements

asked Mar 14, 2013 at 19:04

7 votes

1 answer

458 views

A criterion for loxodromicity in Gromov-hyperbolic spaces

asked Apr 26, 2021 at 9:04

7 votes

0 answers

372 views

"Factorisation" in special linear groups over rings of integers

asked Jun 10, 2016 at 7:59

6 votes

2 answers

585 views

Applications of isotropic quadratic forms

asked Dec 15, 2016 at 18:12

6 votes

2 answers

718 views

Geodesic flow on infinite surfaces

asked Sep 16, 2014 at 11:49

6 votes

4 answers

909 views

How long does it take to compute a class number?

asked Oct 29, 2013 at 12:42

6 votes

2 answers

339 views

Continuity of the spectrum with respect to the metric

asked Jun 10, 2013 at 8:01

4 votes

2 answers

396 views

Is there a contractible bounded homogeneous space?

asked May 17, 2013 at 9:05

4 votes

1 answer

253 views

Subgroups and representations of finite groups of Lie type

asked Jun 30, 2021 at 10:43

2 votes

1 answer

87 views

Commensurability of 2-colorings of finite 4-valent graphs

asked Sep 19, 2013 at 6:36

2 votes

1 answer

183 views

Fixed directions and Zariski density of hyperbolic groups

asked Nov 18, 2013 at 16:33

2 votes

0 answers

66 views

Critical exponent for groups with parabolics

asked Jun 14 at 15:04

1 vote

0 answers

117 views

Reduction mod 2 for orthogonal groups

asked Sep 19, 2023 at 15:43

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21 Questions

Kaplansky's unit conjecture and unique products

Are hyperbolic $n$-manifolds recursively enumerable?

The number of involutions in a permutation group

2-torsion in class groups of cubic fields

Polynomial growth without Gromov's theorem

Length and curvature for closed curves in negatively curved spaces

Fundamental units of imaginary quartic fields

How close can closed geodesics be?

Subgroups of $SL_2(F)$ generated by unipotent elements

A criterion for loxodromicity in Gromov-hyperbolic spaces

"Factorisation" in special linear groups over rings of integers

Applications of isotropic quadratic forms

Geodesic flow on infinite surfaces

How long does it take to compute a class number?

Continuity of the spectrum with respect to the metric

Is there a contractible bounded homogeneous space?

Subgroups and representations of finite groups of Lie type

Commensurability of 2-colorings of finite 4-valent graphs

Fixed directions and Zariski density of hyperbolic groups

Critical exponent for groups with parabolics

Reduction mod 2 for orthogonal groups