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Commit 2e91929f authored by Luca Lista's avatar Luca Lista
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update

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......@@ -496,8 +496,8 @@ The term ${\partial{\cal L}}/{\partial A^\nu}$ only involves the interaction Lag
\end{align}
So, the Euler--Lagrange equations can be written as:
\begin{align}
\partial_\mu\frac{\partial{\cal L}}{\partial(\partial^\mu A^\nu)} - \frac{\partial{\cal L}}{\partial A^\nu} =
-\frac{1}{\mu_0}\partial_\mu F^{\mu\nu} + j_\nu = 0\ ,
\partial^\mu\frac{\partial{\cal L}}{\partial(\partial^\mu A^\nu)} - \frac{\partial{\cal L}}{\partial A^\nu} =
-\frac{1}{\mu_0}\partial^\mu F_{\mu\nu} + j_\nu = 0\ ,
\end{align}
and give the covariant form of Maxwell equations\index{Maxwell equations}:
\begin{align}
......
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