Hello everyone!
I'm trying to perform the plethystic substitution f→f[X1−q] (which is given by f[X1−q]=f(x1,qx1,q2x1,...,x2,qx2,...))
I tried to implement this in Sage using the command .plethysm(X/(1-q)), but it doesn't seem to be giving me the right thing (I have no idea how it's interpreting 1/(1-q) actually). Does anyone know if this is implemented, and if so, how to get it to work?
Thanks so much in advance!