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Question: Coefficients of differential polynomial

Question:Coefficients of differential polynomial

schzan 130 Maple
polynomial coeff
November 27 2015
2

Hello everyone,

 

I am trying to extract the coefficients from a differential poynomial. In general, this poynomial is in two variables, say u and v along with their differentials, i.e D(u) or D@@2(u) or so on. 

Coefficients of this polynomials are rational funcitons.

For instance- consider the following example:

a(x)*v*u+v*D(u)-D(v)*u

then output should be [a(x), 1, -1].

 

Thanks for your help.
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