Hi,

I want to apply a complex differential operator to an expression "polynomial in the imaginary part * differential operator".

I have been unable to figure out how to do that using a formal operator and a concrete one that takes care of differentiating the polynomial.

In more detail:

Let $d$ be (my complex number is $x+iy$)

$d:=\frac{\partial}\partial x}- i\frac{\partial}{\partial y}$

which I want to apply to

$p(y) d$