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 metric-tensor
Search options not deleted
user 120435
The variables used in general relativity to describe the shape of spacetime. If your question is about metric units, use the tag "units", and/or "si-units" if it is about the SI system specifically.
0
votes
Why is the scalar product of two four-vectors Lorentz-invariant?
A vector $\mathbf{v} = v^i \, \mathbf{e}_i = q^j \,\mathbf{u}_j$ has different vector components ($v^i$, $q^j$ in this case) in different bases ($\{\mathbf{e}\}$,$\{\mathbf{u}\}$, in our example) whic …
- 101