#11935: Make parent/element classes independent of base rings and the category
graph consistent with method resolution
---------------------------+------------------------------------------------
Reporter: SimonKing | Owner: nthiery
Type: enhancement | Status: new
Priority: major | Milestone: sage-4.7.3
Component: categories | Keywords: parent class, element class,
category
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies: #11900
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Comment(by SimonKing):
Concerning uniqueness of the parent class: In at least one case (namely
`Algebras(R)`), the super categories depend on whether the base ring is a
field or not. We would like to have
{{{
sage: Algebras(ZZ).parent_class != Algebras(GF(3)).parent_class ==
Algebras(QQ).parent_class
True
}}}
The idea is that the parent and element classes should only depend on the
super categories, but otherwise should be independent from the base ring.
Working at #11900, I found that this would ''drastically'' improve the
performance of some elliptic curve computation.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11935#comment:1>
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