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Question: How I can use Euler-Lagrange operator for conservation laws ?

Question:How I can use Euler-Lagrange operator for conservation laws ?

mskalsi 290 Maple
November 27 2016
0

In paper of Nail H. Ibragimov there is operator given at equation 2.10 which he call by name Euler-Lagrange operator. How I can use this operator in Maple to derive adjoint equations ?
I have attached JPEG in which I want to apply this operator to Lagrange identity "I" for adjoint equations.
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