Timeline for Principal symbol for non-linear differential operators
Current License: CC BY-SA 3.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 22, 2017 at 8:10 | vote | accept | Peter Wildemann | ||
| Sep 21, 2017 at 18:33 | history | answered | Deane Yang | CC BY-SA 3.0 |