Payan, Charles
| Title | Source | Status | Imp. | Posted |
|---|---|---|---|---|
| Stable set meeting all longest directed paths. | opg | open | ★★ | 2013-03-01 |
| Three-chromatic (0,2)-graphs | opg | open | ★★ | 2007-09-07 |
| Title | Source | Status | Imp. | Posted |
|---|---|---|---|---|
| Stable set meeting all longest directed paths. | opg | open | ★★ | 2013-03-01 |
| Three-chromatic (0,2)-graphs | opg | open | ★★ | 2007-09-07 |