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$\begingroup$ I think this is answering an ever-so-slightly different question than what was asked. The question asks how to derive Maxwell's equations directly from $\mathcal{L} = A_\mu (g^{\mu\nu}\partial^2 - \partial^\mu \partial^\nu)A_\nu$. $\endgroup$

user34722
– user34722

2025-01-15 06:28:32 +00:00
Commented Jan 15 at 6:28
$\begingroup$ @user34722 See my edit. $\endgroup$

Hyperon
– Hyperon

2025-01-15 06:54:59 +00:00
Commented Jan 15 at 6:54

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