Hao Chen's user avatar
Hao Chen's user avatar
Hao Chen's user avatar
Hao Chen
  • Member for 12 years, 2 months
  • Last seen this week
32 votes

Generalizations of the four-color theorem

16 votes

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

13 votes

Chromatic number of graphs of tangent closed balls

13 votes
Accepted

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

10 votes
Accepted

Coloring of the plane

7 votes
Accepted

Work on triply periodic minimal surfaces

6 votes

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

5 votes

Spirals in Apollonian circle-packings

5 votes

Three-dimensional Apollonian spirals

5 votes
Accepted

Stable equilibria of points on the 2-sphere

5 votes

Is there a midsphere theorem for 4-polytopes?

4 votes

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

4 votes

Chromatic number of graphs of tangent closed balls

3 votes

Is there a midsphere theorem for 4-polytopes?

3 votes

Examples where existence is harder than evaluation

3 votes

Basic question about polytope duals

3 votes

Polytope with indegree-increasing property.

2 votes
Accepted

Block error-correcting codes over inhomogeneous alphabets

2 votes

Conjecture regarding closest point inside a discrete ball to a line

2 votes

Graphs with dangling edges

1 vote

Graph embedding that locally minimizes total edge lengths

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?

1 vote

Convex caps with prescribed edges and curvature