Timeline for Tensor notation of covariant derivative
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| Jun 19, 2021 at 12:54 | history | edited | Eletie | CC BY-SA 4.0 |
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| Jun 19, 2021 at 12:54 | comment | added | FonerBalear | I get it now, many thanks! | |
| Jun 19, 2021 at 12:51 | comment | added | Eletie | Ah ok. You can choose any but you have to go through all the $b_i$'s individually. So it makes sense to start with replacing the first index, then the second, etc. So you'll get terms like $T^{d \, b_2 \, b_3 ...}$, $T^{b_1 \, d \, b_3 ...}$, all the way to $T^{... b_{k-1} \, d}$, | |
| Jun 19, 2021 at 12:48 | comment | added | FonerBalear | Sorry, I might not be explaining myself properly. I mean, out of all of the b1,b2,...bl, I can choose whichever I want to replace with d? | |
| Jun 19, 2021 at 12:46 | comment | added | Eletie | Yes, $d$ here could be any other letter (that's not already used). en.m.wikipedia.org/wiki/Einstein_notation | |
| Jun 19, 2021 at 12:46 | comment | added | FonerBalear | Thanks! I understand it doesn't matter which specific index you choose to sum over? | |
| Jun 19, 2021 at 12:45 | history | edited | Eletie | CC BY-SA 4.0 |
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| Jun 19, 2021 at 12:39 | history | answered | Eletie | CC BY-SA 4.0 |