Derive the Euler Lagrange equations using field theory notation

Question:Derive the Euler Lagrange equations using field theory notation

Posted: daljit97 65 Product: Maple

March 14 2021

I would like to compute the euler-lagrange equations using the index notation in quantum field theory. So for example given the Lagrangian here:

Is there a way to derive the Euler-Lagrange equation in maple?

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