- #1
Nusc
- 760
- 2
Homework Statement
Calculate the invariant
[tex]
E^{\alpha \beta} E_{\alpha \beta}
[/tex]
Homework Equations
The Attempt at a Solution
we apply the metric in this case,
[tex]
E^{\alpha \beta} E_{\alpha \beta} = g_{\alpha n} g_{\beta m} E_{n m} E^{n m}
[/tex]
is that even correct?