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TerronaBell

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gt.geometric-topology

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25 Questions

Votes Activity Newest Views
6
27
votes
4
answers
3k
views

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

ag.algebraic-geometry algorithms na.numerical-analysis computer-algebra groebner-bases
Apr 10 '18 at 19:18 Rodrigo de Azevedo 2,062
13
20
votes
1
answer
4k
views

Fast Fourier Transform for Graph Laplacian?

linear-algebra fourier-analysis sp.spectral-theory graph-theory
Aug 12 '10 at 20:12 dranxo 777
14
17
votes
2
answers
2k
views

How useful/pervasive are differential forms in surface theory?

dg.differential-geometry teaching curves-and-surfaces
Mar 9 '14 at 13:11 Robert Bryant 86.7k
18
17
votes
1
answer
3k
views

Relationship between Green's function and geodesic distance?

dg.differential-geometry ap.analysis-of-pdes sp.spectral-theory
May 7 '12 at 10:38 Liviu Nicolaescu 30.2k
9
9
votes
4
answers
1k
views

How are invariants represented in category theory?

ct.category-theory symplectic-topology dg.differential-geometry
Feb 5 '11 at 17:13 Tristan 1
2
8
votes
1
answer
1k
views

Growth of Laplacian eigenvalues on a compact domain?

sp.spectral-theory dg.differential-geometry differential-operators laplacian
Oct 9 at 3:36 Amir Sagiv 3,118
3
8
votes
4
answers
1k
views

Existence of triply orthogonal coordinates

dg.differential-geometry
Jul 22 '12 at 19:08 Robert Bryant 86.7k
3
8
votes
2
answers
1k
views

Tweetable way to see that Willmore energy is Möbius invariant?

dg.differential-geometry riemannian-geometry hyperbolic-geometry
Jun 14 '12 at 22:26 Yuri Vyatkin 209
1
7
votes
0
answers
409
views

Quotient of 3-sphere by binary octahedral group?

gt.geometric-topology gr.group-theory lie-groups differential-topology dg.differential-geometry
May 25 '13 at 22:50 TerronaBell 2,759
1
5
votes
3
answers
563
views

Estimates for the diameter of a (nice) surface?

dg.differential-geometry sp.spectral-theory
Jan 30 '18 at 2:14 Martin Sleziak 4,257
1
5
votes
3
answers
433
views

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

graph-theory mg.metric-geometry discrete-geometry computational-geometry metric-embeddings
Feb 10 '14 at 7:06 Community♦ 1
3
5
votes
2
answers
681
views

Surface Laplace-Beltrami without coordinates, exterior calculus?

teaching surfaces dg.differential-geometry differential-operators
Oct 22 '12 at 2:24 Deane Yang 23.6k
2
5
votes
1
answer
359
views

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

sp.spectral-theory dg.differential-geometry ds.dynamical-systems
Jan 26 '10 at 15:43 TerronaBell 2,759
2
4
votes
1
answer
240
views

The space of circular triangles?

mg.metric-geometry
Oct 10 '13 at 3:33 TerronaBell 2,759
1
4
votes
2
answers
1k
views

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

computational-geometry
Jan 24 '12 at 17:36 Joseph O'Rourke 137k
1
4
votes
2
answers
553
views

How do you solve linear systems whose solutions decay exponentially?

na.numerical-analysis sp.spectral-theory heat-equation
Nov 3 '11 at 8:38 Federico Poloni 16.2k
5
4
votes
3
answers
789
views

Variational characterization of curvature?

dg.differential-geometry mg.metric-geometry
Jan 7 '10 at 19:42 Deane Yang 23.6k
2
3
votes
1
answer
492
views

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

differential-operators differential-equations ap.analysis-of-pdes elliptic-pde dg.differential-geometry
Aug 7 '12 at 21:39 Rafe Mazzeo 1,944
4
3
votes
0
answers
2k
views

Relationship between geodesics and curvature lines on surfaces?

dg.differential-geometry riemannian-geometry mg.metric-geometry
Apr 29 '10 at 19:31 TerronaBell 2,759
1
3
votes
1
answer
357
views

Singular, holonomy-free connections on Riemannian surfaces?

dg.differential-geometry gt.geometric-topology
Apr 23 '10 at 21:22 Community♦ 1
1
3
votes
1
answer
1k
views

Maximizing Sparsity in l1 Minimization?

oc.optimization-and-control na.numerical-analysis mg.metric-geometry
Feb 8 '10 at 18:35 TerronaBell 2,759
 
2
votes
2
answers
375
views

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

dg.differential-geometry sp.spectral-theory
May 2 '13 at 19:11 Ian Agol 58.4k
 
1
vote
1
answer
219
views

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

random-walks markov-chains graph-theory na.numerical-analysis
Aug 21 '12 at 0:43 Will Sawin 87.2k
 
1
vote
1
answer
421
views

Projection onto a quadratic cone?

oc.optimization-and-control na.numerical-analysis ag.algebraic-geometry
Apr 10 '12 at 23:22 Community♦ 1
2
1
vote
2
answers
5k
views

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

convexity oc.optimization-and-control mg.metric-geometry
Dec 31 '09 at 16:14 TerronaBell 2,759
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