Hi,
Sage has a LieConformalAlgebras module which is able to compute OPEs, or
equivalently \lambda-brackets when those brackets close under OPEs. There
isn't, however, a "free" Lie Conformal Algebra which allows for OPEs of
fields build from normally ordered products using the noncommutative Wic
I asked the following question on ask.sagemath :
https://ask.sagemath.org/question/49897/acess-bracked-elements-in-free-lie-algebra-element/
and
I'll copy it here.
I'm trying to access the left and right elements in a free lie algebra
element, whose monomials are stored as binary trees. Thus