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| 2018-10-29 13:37:56 +0200 | asked a question | How do I define a homomorphism of a graded commutative algebra? I am working on implementing morphisms of graded commutative algebras. I have two graded commutative algebra, A with generators <w,x> and B with generators <y,z> . I define H the set of homomorphisms from A to B. Then, I want to define the homomorphisms f such that f(w)=y and f(x)=0 but I get an error: sage: H = Hom(A,B) sage: H([y,0]) TypeError: images do not define a valid homomorphism |
Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.