User TerronaBell

17 votes

2 answers

3k views

How useful/pervasive are differential forms in surface theory?

asked Mar 8, 2014 at 0:29

5 votes

4 answers

534 views

How hard is it to determine if a weighted graph can be isometrically embedded in R^3?

asked Feb 8, 2014 at 23:27

4 votes

1 answer

333 views

The space of circular triangles?

asked Oct 9, 2013 at 23:44

7 votes

0 answers

505 views

Quotient of 3-sphere by binary octahedral group?

asked May 25, 2013 at 22:50

3 votes

2 answers

416 views

Gap between first two nonzero Laplacian eigenvalues on closed compact surface?

asked May 2, 2013 at 5:05

6 votes

2 answers

898 views

Surface Laplace-Beltrami without coordinates, exterior calculus?

asked Oct 21, 2012 at 17:36

1 vote

1 answer

239 views

Distributions induced by (weighted) random walks on the integer lattice

asked Aug 20, 2012 at 22:49

4 votes

1 answer

542 views

Does the operator $\mathrm{id}-t\Delta$ or its Green's function have a name?

asked Aug 7, 2012 at 14:24

8 votes

2 answers

1k views

Tweetable way to see that Willmore energy is Möbius invariant?

asked Jun 14, 2012 at 5:49

25 votes

1 answer

3k views

Relationship between Green's function and geodesic distance?

asked Apr 20, 2012 at 16:19

1 vote

1 answer

534 views

Projection onto a quadratic cone?

asked Mar 26, 2012 at 6:55

4 votes

2 answers

1k views

Area of a Convex Polygon (Described via Half-Planes)

asked Jan 24, 2012 at 15:51

4 votes

2 answers

581 views

How do you solve linear systems whose solutions decay exponentially?

asked Oct 30, 2011 at 15:01

5 votes

3 answers

641 views

Estimates for the diameter of a (nice) surface?

asked Sep 20, 2011 at 14:43

8 votes

1 answer

2k views

Growth of Laplacian eigenvalues on a compact domain?

asked Jun 15, 2011 at 20:36

8 votes

4 answers

2k views

Existence of triply orthogonal coordinates

asked Jul 22, 2010 at 22:11

5 votes

0 answers

2k views

Relationship between geodesics and curvature lines on surfaces?

asked Apr 29, 2010 at 18:20

3 votes

1 answer

428 views

Singular, holonomy-free connections on Riemannian surfaces?

asked Apr 9, 2010 at 13:05

21 votes

2 answers

4k views

Fast Fourier transform for graph Laplacian?

asked Mar 1, 2010 at 2:08

3 votes

1 answer

1k views

Maximizing Sparsity in l1 Minimization?

asked Feb 5, 2010 at 7:32

5 votes

1 answer

387 views

Is there a name for this differential operator and/or its corresponding spectrum?

asked Jan 26, 2010 at 6:48

4 votes

3 answers

834 views

Variational characterization of curvature?

asked Jan 5, 2010 at 22:19

1 vote

2 answers

6k views

If a quadratic form is positive definite on a convex set, is it convex on that set?

asked Dec 31, 2009 at 2:33

28 votes

4 answers

3k views

Can Gröbner bases be used to compute solutions to large, real-world problems?

asked Nov 17, 2009 at 0:53

12 votes

4 answers

2k views

How are invariants represented in category theory?

asked Nov 12, 2009 at 2:14

Stack Exchange Network

25 Questions

How useful/pervasive are differential forms in surface theory?

How hard is it to determine if a weighted graph can be isometrically embedded in R^3?

The space of circular triangles?

Quotient of 3-sphere by binary octahedral group?

Gap between first two nonzero Laplacian eigenvalues on closed compact surface?

Surface Laplace-Beltrami without coordinates, exterior calculus?

Distributions induced by (weighted) random walks on the integer lattice

Does the operator $\mathrm{id}-t\Delta$ or its Green's function have a name?

Tweetable way to see that Willmore energy is Möbius invariant?

Relationship between Green's function and geodesic distance?

Projection onto a quadratic cone?

Area of a Convex Polygon (Described via Half-Planes)

How do you solve linear systems whose solutions decay exponentially?

Estimates for the diameter of a (nice) surface?

Growth of Laplacian eigenvalues on a compact domain?

Existence of triply orthogonal coordinates

Relationship between geodesics and curvature lines on surfaces?

Singular, holonomy-free connections on Riemannian surfaces?

Fast Fourier transform for graph Laplacian?

Maximizing Sparsity in l1 Minimization?

Is there a name for this differential operator and/or its corresponding spectrum?

Variational characterization of curvature?

If a quadratic form is positive definite on a convex set, is it convex on that set?

Can Gröbner bases be used to compute solutions to large, real-world problems?

How are invariants represented in category theory?