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Question: How do I determine the symmetries of a differential expression in Maple?

Question:How do I determine the symmetries of a differential expression in Maple?

zhuxian 60 Maple
pde symmetry infinitesimal
October 11 2016
1

I know there is some code to compute the symmetry of pde, but i want to compute the symmetry of some differential expression, as f(x,t,ux,ut).

The difference is that when solve the infinitesimal, we don't have the identity f(x,t,ux,ut)=0, we just take each variable in the jet space as independent.

Is there any package to do that?

help and thanks!
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