#8335: Finite Field lattices for (pseudo-)Conway polynomials
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Reporter: roed | Owner: AlexGhitza
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.11
Component: algebra | Resolution:
Keywords: days49 | Work issues:
Report Upstream: N/A | Reviewers: Jean-Pierre
Flori, Luca De Feo
Authors: David Roe, Jean-Pierre Flori | Merged in:
Dependencies: #13894 | Stopgaps:
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Comment (by pbruin):
I started to look at the patches, but was immediately struck by a problem
that has nothing to do with finite fields. In
`QuotientFunctor._apply_functor`, the functor R -> R/IR (where I is an
ideal of the base ring) to arbitrary rings. This makes perfect sense for
any R; you just happen to get the zero ring when IR = R. The existing
behaviour is certainly correct (although it is debatable whether the zero
ring should be represented as `Integers(1)`). Why would you want to raise
an exception if R is a field?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8335#comment:75>
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