If I have a power series ring and its residue field
R = PowerSeriesRing(GF(2),'t') F = R.residue_field() there is no natural coercion morphism: R.hom(F) TypeError: Natural coercion morphism from Power Series Ring in t over Finite Field of size 2 to Finite Field of size 2 not defined. But maybe there should be? One can work around this by specifying R.hom([0], F) But with it not being natural, how does one extend it to a polynomial ring? PR = PolynomialRing(R,'x,y') PF = PolynomialRing(F,'x,y') PR.hom(PF) -- 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 sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
