Timeline for Second derivative of a functional defined by an integral
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 31, 2019 at 0:11 | comment | added | EagleToLearn | Dear DCM, Thank you so much for your explanation! | |
| Mar 30, 2019 at 10:44 | comment | added | DCM | I think the word `Hessian' might be enough to help you out here ;) | |
| Mar 30, 2019 at 10:39 | comment | added | DCM | I believe that the operator spoken of in the second part is the `Hessian' (the integral disappears because it's part of the inner product). I think this is usually defined by requiring that $f''(u)\phi \psi = (\phi,(\mathrm{Hess}f)(u)\psi)$ for all $\phi$ and $\psi$, where $(.,.)$ is the inner product for the space in which you're working. | |
| Mar 29, 2019 at 20:00 | review | First posts | |||
| Mar 29, 2019 at 20:32 | |||||
| Mar 29, 2019 at 19:59 | history | asked | EagleToLearn | CC BY-SA 4.0 |