#8327: Implement the universal cyclotomic field, using Zumbroich basis
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Reporter: nthiery | Owner:
Type: enhancement | Status:
needs_work
Priority: major | Milestone: sage-4.8
Component: number fields | Keywords:
Cyclotomic field, Zumbroich basis
Work_issues: Rebase wrt #10771. Fix one doctest. | Upstream: N/A
Reviewer: | Author: Christian
Stump, Simon King
Merged: | Dependencies: #10771
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Comment(by stumpc5):
Replying to [comment:54 SimonKing]:
> sage: UCF.is_subring(UCF)
> Expected:
> True
> Got:
> False
UCF.is_subring(UCF) just returns
{{{
sage: UCF is UCF
}}}
and as `UniversalCyclotomicField` inherits from `UniqueRepresentation`,
this should return `True`. I don't know if this error might come from some
lazy import which makes UCF not unique, or if something changed in
`UniqueRepresentation`? Nicolas might know...
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8327#comment:55>
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