#14366: Zero does not belong to zero ideal of a number field
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Reporter: olitb | Owner: davidloeffler
Type: defect | Status: needs_review
Priority: major | Milestone: sage-5.11
Component: number fields | Resolution:
Keywords: sd51 | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Dependencies:
Stopgaps: |
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Comment (by mkosters):
Replying to [comment:12 saraedum]:
> Replying to [comment:11 mkosters]:
> > The coordinate function of a relative number field returns 'absolute'
coordinates to QQ. Shouldn't this actually also be in terms of the
relative field (same for I.basis() where I is an ideal)?
>
> I agree. If you want to you could put this into a new ticket.
Actually, I think it is not a good idea to do. Basically, modules (and
ideals, integral closures) are not free any more (because the class number
is not 1 in general), so a basis might not exist.
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Ticket URL: <http://trac.sagemath.org/ticket/14366#comment:14>
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