User Hao Chen

32 votes

Generalizations of the four-color theorem

answered Dec 7, 2014 at 16:21

17 votes

Accepted

Koebe–Andreev–Thurston theorem - where can I find a proof?

answered Nov 23, 2014 at 1:10

16 votes

Is {6,3,7} an 'ultrahyperbolic' Coxeter group?

answered Jun 9, 2014 at 20:13

13 votes

Chromatic number of graphs of tangent closed balls

answered Feb 6, 2015 at 14:46

10 votes

Accepted

Coloring of the plane

answered Oct 8, 2014 at 13:25

7 votes

Accepted

Work on triply periodic minimal surfaces

answered Oct 22, 2020 at 12:14

6 votes

Some polytopes in $\mathbb R^n$ whose vertices have coordinates 1, -1 or 0

answered Oct 8, 2014 at 14:00

5 votes

Spirals in Apollonian circle-packings

answered Nov 10, 2014 at 15:01

5 votes

Three-dimensional Apollonian spirals

answered Nov 10, 2014 at 16:27

5 votes

Accepted

Stable equilibria of points on the 2-sphere

answered Nov 13, 2014 at 17:04

5 votes

Is there a midsphere theorem for 4-polytopes?

answered Aug 27, 2015 at 9:14

4 votes

How do we explain the use of a software on a math paper?

answered May 17, 2019 at 15:46

4 votes

Chromatic number of graphs of tangent closed balls

answered Sep 4, 2013 at 17:59

3 votes

Is there a midsphere theorem for 4-polytopes?

answered Jan 17, 2013 at 16:38

3 votes

Examples where existence is harder than evaluation

answered May 19, 2019 at 13:38

3 votes

Basic question about polytope duals

answered Feb 14, 2016 at 7:18

3 votes

Polytope with indegree-increasing property.

answered Mar 9, 2015 at 11:52

2 votes

Accepted

Block error-correcting codes over inhomogeneous alphabets

answered Feb 17, 2015 at 7:29

2 votes

Conjecture regarding closest point inside a discrete ball to a line

answered Nov 22, 2014 at 22:23

2 votes

Graphs with dangling edges

answered Jul 6, 2021 at 18:16

1 vote

Graph embedding that locally minimizes total edge lengths

answered Nov 26, 2020 at 9:58

1 vote

Accepted

For a 3D Apollonian packing, do we really know that the Hausdorff dimension of the complement is approximated by the growth rate of curvature?

answered Aug 15, 2014 at 9:34

1 vote

Convex caps with prescribed edges and curvature

answered Oct 12, 2017 at 7:39

Stack Exchange Network

23 Answers

Generalizations of the four-color theorem

Koebe–Andreev–Thurston theorem - where can I find a proof?

Is {6,3,7} an 'ultrahyperbolic' Coxeter group?

Chromatic number of graphs of tangent closed balls

Coloring of the plane

Work on triply periodic minimal surfaces

Some polytopes in $\mathbb R^n$ whose vertices have coordinates 1, -1 or 0

Spirals in Apollonian circle-packings

Three-dimensional Apollonian spirals

Stable equilibria of points on the 2-sphere

Is there a midsphere theorem for 4-polytopes?

How do we explain the use of a software on a math paper?

Chromatic number of graphs of tangent closed balls

Is there a midsphere theorem for 4-polytopes?

Examples where existence is harder than evaluation

Basic question about polytope duals

Polytope with indegree-increasing property.

Block error-correcting codes over inhomogeneous alphabets

Conjecture regarding closest point inside a discrete ball to a line

Graphs with dangling edges

Graph embedding that locally minimizes total edge lengths

For a 3D Apollonian packing, do we really know that the Hausdorff dimension of the complement is approximated by the growth rate of curvature?

Convex caps with prescribed edges and curvature