User j0equ1nn

25 votes

2 answers

1k views

Is there a database somewhere for sharing translations of mathematical works?

asked Mar 20, 2013 at 19:54

25 votes

1 answer

2k views

history of quaternion algebras

asked Jan 31, 2014 at 23:35

20 votes

1 answer

1k views

What was a "cusp" to Hurwitz in 1892?

asked Mar 8, 2016 at 6:27

15 votes

2 answers

7k views

Is there a standard notation for off-diagonal transpose?

asked Jan 28, 2015 at 2:41

13 votes

3 answers

470 views

Origin of number theoretic invariants associated to hyperbolic 3-manifolds

asked Apr 29, 2014 at 6:29

8 votes

2 answers

314 views

What is the most efficient way to factor a matrix into a given set of generators?

asked Oct 17, 2015 at 22:41

6 votes

1 answer

328 views

Compact hyperbolic 3-manifolds with prescribed quaternion algebra, quaternion parameters as ramification condition

asked Oct 23, 2015 at 1:10

6 votes

3 answers

579 views

For an arithmetic hyperbolic 3-manifold group, when is its trace field not its invariant trace field?

asked Mar 13, 2016 at 3:07

6 votes

1 answer

213 views

Does the Cayley-Dickson construction preserve isomorphism of quaternion algebras?

asked Mar 17, 2016 at 21:20

6 votes

1 answer

374 views

Computing algebraic properties of trace fields, as given by SnapPy

asked Mar 28, 2016 at 4:14

6 votes

1 answer

215 views

Current interest in geometric properties of Hilbert fundamental domains

asked Oct 12, 2017 at 21:26

6 votes

0 answers

706 views

"Introduction" to ... am I an idiot? [this question is about general math studying practices and not a particular problem] [closed]

asked May 2, 2011 at 6:07

6 votes

2 answers

2k views

Ramified quaternion algebras

asked Mar 20, 2013 at 5:25

5 votes

1 answer

488 views

How can we explicitly verify a canonical Dirichlet domain for this hyperbolic punctured torus

asked Sep 24, 2015 at 8:06

5 votes

2 answers

341 views

Conjugate transpose and discreteness, for Kleinian groups

asked Nov 18, 2015 at 7:45

5 votes

0 answers

207 views

Dirichlet domain for a Hilbert modular variety

asked Mar 8, 2017 at 6:20

4 votes

1 answer

197 views

Trace field of a hyperbolic $3$-manifold with a totally geodesic subsurface

asked Dec 7, 2017 at 23:25

4 votes

1 answer

260 views

How many quadratic fields occur as trace fields of hyperbolic knot complements?

asked Mar 13, 2016 at 20:48

4 votes

1 answer

278 views

What happens if we generalize the fundamental group to make knotted loops distinct?

asked Dec 1, 2017 at 14:17

4 votes

1 answer

445 views

How non-planar is the Math Genealogy Project graph? [closed]

asked Nov 27, 2016 at 0:35

4 votes

2 answers

249 views

How should we define $\mathrm{PSL}_2$ of a Clifford group?

asked Feb 3, 2017 at 21:56

4 votes

0 answers

123 views

How to enumerate a discrete group of matrices by their Frobenius norm?

asked Mar 21, 2016 at 9:45

3 votes

1 answer

277 views

How many non-commensurable non-arithmetic manifolds have a quaternion algebra like this?

asked Mar 12, 2016 at 21:21

3 votes

1 answer

677 views

What does the trace of a loxodromic Mobius transformation tell us about how it rotates?

asked Dec 24, 2015 at 10:32

3 votes

2 answers

489 views

Where can I find a translation of Caspar Wessel's "Om directionens analytiske betegning?"

asked Jul 26, 2014 at 20:21

3 votes

2 answers

503 views

An expression with an alternating trilinear form, written in terms of the determinant and a symmetric bilinear form

asked Apr 25, 2013 at 1:16

3 votes

3 answers

3k views

Basic arithmetic behind ramification in quadratic number fields

asked Jul 23, 2013 at 4:32

3 votes

0 answers

230 views

Pairs of non-isometric subsurfaces of a hyperbolic 3-manifold, with the same genus

asked Dec 9, 2017 at 21:14

2 votes

1 answer

192 views

Frohman & Fine's proof about Bianchi groups as HNN extensions (or anyone else's)

asked Dec 29, 2013 at 0:10

2 votes

1 answer

223 views

Why do noncocompact arithmetic Kleinian groups have quadratic trace fields?

asked Jul 14, 2014 at 23:26

Stack Exchange Network

40 Questions

Is there a database somewhere for sharing translations of mathematical works?

history of quaternion algebras

What was a "cusp" to Hurwitz in 1892?

Is there a standard notation for off-diagonal transpose?

Origin of number theoretic invariants associated to hyperbolic 3-manifolds

What is the most efficient way to factor a matrix into a given set of generators?

Compact hyperbolic 3-manifolds with prescribed quaternion algebra, quaternion parameters as ramification condition

For an arithmetic hyperbolic 3-manifold group, when is its trace field not its invariant trace field?

Does the Cayley-Dickson construction preserve isomorphism of quaternion algebras?

Computing algebraic properties of trace fields, as given by SnapPy

Current interest in geometric properties of Hilbert fundamental domains

"Introduction" to ... am I an idiot? [this question is about general math studying practices and not a particular problem] [closed]

Ramified quaternion algebras

How can we explicitly verify a canonical Dirichlet domain for this hyperbolic punctured torus

Conjugate transpose and discreteness, for Kleinian groups

Dirichlet domain for a Hilbert modular variety

Trace field of a hyperbolic $3$-manifold with a totally geodesic subsurface

How many quadratic fields occur as trace fields of hyperbolic knot complements?

What happens if we generalize the fundamental group to make knotted loops distinct?

How non-planar is the Math Genealogy Project graph? [closed]

How should we define $\mathrm{PSL}_2$ of a Clifford group?

How to enumerate a discrete group of matrices by their Frobenius norm?

How many non-commensurable non-arithmetic manifolds have a quaternion algebra like this?

What does the trace of a loxodromic Mobius transformation tell us about how it rotates?

Where can I find a translation of Caspar Wessel's "Om directionens analytiske betegning?"

An expression with an alternating trilinear form, written in terms of the determinant and a symmetric bilinear form

Basic arithmetic behind ramification in quadratic number fields

Pairs of non-isometric subsurfaces of a hyperbolic 3-manifold, with the same genus

Frohman & Fine's proof about Bianchi groups as HNN extensions (or anyone else's)

Why do noncocompact arithmetic Kleinian groups have quadratic trace fields?