Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with trace
Search options answers only
not deleted
user 68410
Use this tag when having questions concerning expressions with the trace of a matrix/operator.
5
votes
Accepted
Ricci tensor $R_{\mu\nu}=\Phi g_{\mu\nu}\implies \Phi = \frac1n R$
The Kronecker delta represents the identity matrix, which in $n$ dimensions has $n$ 1s in its diagonal, therefore its trace is $n$. …
- 11.6k
6
votes
Accepted
Trace of a Tensor
The components of $\text{Ric}$ transform during coordinate change $x^\mu\mapsto \tilde{x}^\mu$ as $\tilde{R}_{\mu\nu}=\frac{\partial x^\sigma}{\partial \tilde{x}^\mu}\frac{\partial x^\rho}{\partial \t …
- 11.6k