Timeline for Simple proof that these graphs are perfect
Current License: CC BY-SA 2.5
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 24, 2010 at 21:33 | comment | added | Stefan Geschke | Yes, I was looking for a proof without observing Berge-ness. | |
| Jul 24, 2010 at 21:30 | history | answered | Matthew Kahle | CC BY-SA 2.5 |