complete graph
| Title | Source | Status | Imp. | Posted |
|---|---|---|---|---|
| Crossing numbers and coloring | opg | partial | ★★★ | 2009-09-04 |
| Seagull problem | opg | partial | ★★★ | 2008-01-06 |
| Coloring and immersion | opg | partial | ★★★ | 2007-09-04 |
| The Crossing Number of the Complete Graph | opg | partial | ★★★ | 2007-05-11 |
| Star chromatic index of complete graphs | opg | open | ★★ | 2010-11-16 |
| Double-critical graph conjecture | opg | partial | ★★ | 2009-01-18 |