Timeline for First order Elliptic operator
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 23, 2018 at 15:08 | history | edited | Liviu Nicolaescu | CC BY-SA 3.0 |
added 56 characters in body
|
| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
replaced http://mathoverflow.net/ with https://mathoverflow.net/
|
|
| Nov 21, 2013 at 2:21 | vote | accept | Matthias Ludewig | ||
| Nov 21, 2013 at 1:50 | history | edited | Liviu Nicolaescu | CC BY-SA 3.0 |
deleted 101 characters in body
|
| Nov 20, 2013 at 21:17 | history | edited | Liviu Nicolaescu | CC BY-SA 3.0 |
added 596 characters in body
|
| Nov 20, 2013 at 21:08 | comment | added | Liviu Nicolaescu | The symbol of the operator, up to a factor of $\sqrt{-1}$ is $\si(\xi)=\sum_k\xi_k\sigma_k$. By construction this is invertible if $\xi\neq 0$. Also, it need not be a Dirac operator. | |
| Nov 20, 2013 at 20:59 | comment | added | Johannes Ebert | Why is any elliptic pdo of order 1 of this form? Same problem as in my answer, I would say. | |
| Nov 20, 2013 at 20:39 | history | answered | Liviu Nicolaescu | CC BY-SA 3.0 |