ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Tue, 28 Dec 2010 09:46:12 +0100Constructing a morphism of free modules using the indexing sethttps://ask.sagemath.org/question/7748/constructing-a-morphism-of-free-modules-using-the-indexing-set/I have a set S indexed by triplets of numbers [i,j,k], and I want to construct an endomorphism T of the free module over S (call it F(S)) of the form:
T: e[i,j,k] ---> Sum over (u,v,w) : f(i,j,k, u,v,w) e[u,v,w]
where f(ijkuvw) is a certain function.
Is there a simple way to do this?
Thanks!Michael McBreenTue, 28 Dec 2010 09:46:12 +0100https://ask.sagemath.org/question/7748/