Timeline for Normal vector of hypersurface in Schwarzshild spacetime
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 1, 2021 at 16:23 | vote | accept | Boris | ||
| Mar 1, 2021 at 13:53 | answer | added | J. Murray | timeline score: 1 | |
| Mar 1, 2021 at 13:30 | history | edited | Boris | CC BY-SA 4.0 |
added 410 characters in body
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| Mar 1, 2021 at 13:26 | comment | added | Boris | "In GR, one must use the more general metric tensor g^{alpha beta} and the tensor covariant derivative" en.wikipedia.org/wiki/Four-gradient | |
| Mar 1, 2021 at 13:23 | comment | added | Boris | @Javier I don't think it's enough to only use the covariant derivative (which in this case is the normal partial derivative) in GR but I also need to use the metric according to wikipedia although they don't specify how. Do you know how I would compute the normal vector and its length? | |
| Feb 28, 2021 at 20:52 | comment | added | Javier | The covariant derivative of a scalar function is just the normal derivative, and it's the normal vector by the same standard argument from multivariable calculus. | |
| Feb 28, 2021 at 20:10 | review | First posts | |||
| Feb 28, 2021 at 22:09 | |||||
| Feb 28, 2021 at 20:05 | history | asked | Boris | CC BY-SA 4.0 |