Hi everyone,
As the title says, I need to use Non Commuting Multivariate Formal Power Series rings (Over P-adics) for my masters research, and while I found Non Commuting Multivariate Polynomial rings (e.g. the FreeAlgebra) and Multivariate Formal Power Series rings, I haven't found something that mixes both.
Is there some terminology for this that I'm missing? Or a simple way to implement this in sage?