#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 nthiery):
Replying to [comment:55 stumpc5]:
> UCF.is_subring(UCF) just returns
> {{{
> sage: UCF is UCF
> }}}
> and as `UniversalCyclotomicField` inherits from `UniqueRepresentation`,
this should return `True`.
That's independent of UniqueRepresentation: ``X is X`` is true for any
Python object X.
So the test above breaks, my best bet is that the is_ring method that
gets called is the wrong one.
Good chase!
Nicolas
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8327#comment:56>
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