connectivity
| Title | Source | Status | Imp. | Posted |
|---|---|---|---|---|
| Chords of longest cycles | opg | partial | ★★★ | 2007-11-12 |
| Highly connected graphs with no K_n minor | opg | partial | ★★★ | 2007-03-10 |
| Jorgensen's Conjecture | opg | partial | ★★★ | 2007-03-10 |
| Forcing a $K_6$-minor | opg | partial | ★★ | 2012-01-16 |