User ThiKu

66 votes

9 answers

14k views

Axiom of choice, Banach-Tarski and reality

asked Jan 20, 2017 at 1:23

34 votes

4 answers

5k views

Mathematical uses of string theory

asked Aug 21, 2019 at 21:22

30 votes

3 answers

3k views

Penrose’s singularity theorem

asked Oct 6, 2020 at 15:32

17 votes

3 answers

1k views

Codimension zero immersions

asked Jun 16, 2011 at 15:43

15 votes

0 answers

926 views

How does duality of symmetric spaces explain the hyperbolic cosine theorem?

asked Jan 20, 2012 at 0:11

15 votes

1 answer

2k views

Applications of cluster algebras

asked Aug 13, 2017 at 6:51

13 votes

1 answer

1k views

Representation varieties of 3-manifold groups in $\mathrm{SL}(n,\mathbb{C})$

asked Jun 27, 2014 at 14:48

10 votes

1 answer

277 views

Complements of unknotted tori (higher dimensions)

asked Jun 30, 2015 at 14:12

9 votes

1 answer

5k views

Manifolds are paracompact

asked May 12, 2012 at 15:57

9 votes

1 answer

2k views

Isoperimetry and Poincaré Inequality

asked Jul 27, 2012 at 7:54

7 votes

4 answers

896 views

Lagrangian Kleinian bottles

asked Jun 23, 2012 at 12:52

7 votes

1 answer

639 views

Characterisation of Q-rank 1

asked Oct 7, 2013 at 13:17

7 votes

1 answer

456 views

GIT quotient vs. largest Hausdorff quotient

asked Sep 18, 2017 at 20:01

7 votes

1 answer

381 views

Homology of symplectic groups in the unstable range

asked Aug 10, 2016 at 23:23

6 votes

0 answers

209 views

Stable norm on hyperbolic surfaces

asked May 10, 2017 at 7:18

6 votes

1 answer

753 views

Rigidity of secondary characteristic classes

asked Sep 26, 2013 at 16:00

6 votes

2 answers

1k views

Totally geodesic surfaces in fibered 3-manifolds

asked Sep 9, 2010 at 15:39

5 votes

3 answers

1k views

Matrices generating non-discrete subgroups of SL(2,R)

asked May 9, 2012 at 16:09

5 votes

1 answer

906 views

Boundaries of relatively hyperbolic groups

asked Feb 22, 2014 at 6:51

5 votes

1 answer

307 views

Anosov representations and boundaries of (harmonic) maps

asked Aug 30, 2015 at 12:52

5 votes

3 answers

1k views

2-bridge knots in the Rolfsen's table

asked Mar 13, 2015 at 6:36

5 votes

0 answers

166 views

Second homology of mapping class group via universal coefficient theorem

asked Nov 14, 2015 at 12:32

4 votes

0 answers

315 views

Compactly supported distributions as a projective G-module

asked Feb 16, 2016 at 7:59

4 votes

1 answer

440 views

Hyperbolic Dehn surgeries and SU(2)-representations

asked Mar 6, 2019 at 8:48

4 votes

2 answers

305 views

Quadratic cusp shape

asked Sep 18, 2021 at 9:22

3 votes

1 answer

375 views

Chern-Simons invariants of 2-bridge knots

asked Mar 20, 2015 at 12:35

3 votes

1 answer

298 views

Averaging measurable functions over amenable group actions

asked Nov 9, 2015 at 3:01

3 votes

1 answer

267 views

Homology of solvable Lie groups made discrete

asked Nov 11, 2015 at 12:24

3 votes

1 answer

459 views

R-linear representations of sl(2,C)

asked Jun 8, 2014 at 18:02

3 votes

2 answers

1k views

Cohomology of SL(2,R) with coefficients given by linear action

asked Nov 18, 2014 at 18:49

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36 Questions

Axiom of choice, Banach-Tarski and reality

Mathematical uses of string theory

Penrose’s singularity theorem

Codimension zero immersions

How does duality of symmetric spaces explain the hyperbolic cosine theorem?

Applications of cluster algebras

Representation varieties of 3-manifold groups in $\mathrm{SL}(n,\mathbb{C})$

Complements of unknotted tori (higher dimensions)

Manifolds are paracompact

Isoperimetry and Poincaré Inequality

Lagrangian Kleinian bottles

Characterisation of Q-rank 1

GIT quotient vs. largest Hausdorff quotient

Homology of symplectic groups in the unstable range

Stable norm on hyperbolic surfaces

Rigidity of secondary characteristic classes

Totally geodesic surfaces in fibered 3-manifolds

Matrices generating non-discrete subgroups of SL(2,R)

Boundaries of relatively hyperbolic groups

Anosov representations and boundaries of (harmonic) maps

2-bridge knots in the Rolfsen's table

Second homology of mapping class group via universal coefficient theorem

Compactly supported distributions as a projective G-module

Hyperbolic Dehn surgeries and SU(2)-representations

Quadratic cusp shape

Chern-Simons invariants of 2-bridge knots

Averaging measurable functions over amenable group actions

Homology of solvable Lie groups made discrete

R-linear representations of sl(2,C)

Cohomology of SL(2,R) with coefficients given by linear action