|
Universal point sets for planar graphs
|
opg |
partial |
★★★ |
2007-05-22 |
|
List Hadwiger Conjecture
|
opg |
partial |
★★ |
2014-07-07 |
|
Star chromatic index of complete graphs
|
opg |
open |
★★ |
2010-11-16 |
|
Star chromatic index of cubic graphs
|
opg |
partial |
★★ |
2010-11-16 |
|
Circular colouring the orthogonality graph
|
opg |
open |
★★ |
2008-09-23 |
|
Drawing disconnected graphs on surfaces
|
opg |
partial |
★★ |
2007-05-12 |
|
Half-integral flow polynomial values
|
opg |
open |
★★ |
2007-05-31 |
|
Infinite uniquely hamiltonian graphs
|
opg |
partial |
★★ |
2007-07-24 |
|
List colorings of edge-critical graphs
|
opg |
open |
★★ |
2007-06-12 |
|
Circular choosability of planar graphs
|
opg |
open |
★ |
2012-08-23 |
|
What is the largest graph of positive curvature?
|
opg |
solved |
★ |
2007-03-10 |