Timeline for Derivative in Sobolev space extended by zero
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 13, 2023 at 19:41 | vote | accept | anon.for | ||
| Mar 12, 2023 at 21:30 | comment | added | Iosif Pinelis | Your assertion that $J'(u)=2u(x)$ is wrong and actually makes no sense, for several reasons, including the following: (i) the $x$ there is undefined; (ii) $J'(u)$ is a linear functional, while $u(x)$ is a number (if $x$ is a point between $0$ and $l$); (iii) we can identify $J'(u)$, in a certain manner, with $2u$ only if $u$ is real valued. See the answer below for details. | |
| Mar 12, 2023 at 21:22 | answer | added | Iosif Pinelis | timeline score: 3 | |
| Mar 12, 2023 at 20:45 | history | edited | Daniele Tampieri | CC BY-SA 4.0 |
Minor Math Jaxing + grammar improvement
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| S Mar 12, 2023 at 20:28 | review | First questions | |||
| Mar 12, 2023 at 22:57 | |||||
| S Mar 12, 2023 at 20:28 | history | asked | anon.for | CC BY-SA 4.0 |