In electromagnetism we introduce the following differential form(adsbygoogle = window.adsbygoogle || []).push({});

\begin{array}{c}

\mathbb{F}=F_{\mu \nu}dx^{\mu}\wedge dx^{\nu}

\end{array}

Then the homogeneus Maxwell equations are equivalent to:

\begin{array}{c}

d\mathbb{F} = 0

\end{array}

And is nice, but what purpose does this have?, there is something interesting in saying that F is a closed form?

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# Why using diff. forms in electromagnetism?

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