According to the documentation for commutative_dga, a differential graded algebra is graded by integers. However, if I attempt to give a generator negative degree, I get an error. For example,
A = GradedCommutativeAlgebra(QQ, 'x, y', degrees=(-1, -1)) returns the error ValueError: the degree weights must be all positive integers I'd appreciate any help! -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
