#15801: Categories over a base ring category
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Reporter: nthiery | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.2
Component: categories | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
public/categories/over-a-base- | 12afbe46ebafe56cf74661bb6d5ea81af583ba83
ring-category-15801 | Stopgaps:
Dependencies: #10963 |
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Comment (by tscrim):
Until I make a group ring over a group ring. Actually, maybe a less
contrived example of modules over `S = R[a,b] / J` where `R = ZZ[x,y] / I`
for some ideals `I, J`. There should be more morphisms as `R` modules than
as `S` modules. I think this could be a general issue anytime we try to do
extension of scalars (or I'm being completely paranoid).
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Ticket URL: <http://trac.sagemath.org/ticket/15801#comment:21>
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