NCPolynomialRing -- exported from the NCAlgebra package, used to encode tensor algebras
Methods that use an object of class NCPolynomialRing:
adjointWord(NCRingElement,NCPolynomialRing,List) -- see adjointWord -- image of a word through the shuffle algebra homomorphism induced by a polynomial map
ambient(NCPolynomialRing) -- see ambient -- exported from the NCALgebra package.