Timeline for Decidability of periodic tilings of the plane
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 5, 2020 at 12:43 | vote | accept | grok | ||
| Apr 5, 2020 at 12:43 | |||||
| Feb 15, 2013 at 21:30 | vote | accept | grok | ||
| Apr 5, 2020 at 12:43 | |||||
| Feb 11, 2013 at 15:15 | history | answered | Joel David Hamkins | CC BY-SA 3.0 |