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I would like that someone explain to me the Yang mills equations as defined in some books : $ \begin{cases} d_D F = 0 \\ *d_D *F = J \end{cases} $ What is $ d_D $ ? What is F ? What are $ *d $ and $ *F $ ? What is $ J $ ?. Can we represent those quantities with matrix to simplify the explanation ? Thank you very much all of you.

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    tried wikipedia?2012-12-05

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