#8327: Implement the universal cyclotomic field, using Zumbroich basis
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Reporter: nthiery | Owner:
Type: enhancement | Status:
needs_review
Priority: major | Milestone: sage-5.6
Component: number fields | Resolution:
Keywords: Cyclotomic field, Zumbroich basis | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Christian Stump, Simon King | Merged in:
Dependencies: #13727, #13728 | Stopgaps:
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Comment (by chapoton):
Well, I think I do not have much more to say. I have not yet tested the
new conversions, but I am confident that they work and will try them soon.
I think we can leave further improvements for later tickets. I have noted
an error occuring when doing FractionField(PolynomialRing(UCF,'x')), which
may need investigation. There is also the annoying fact that the elements
do not know that they belong to a field. Given that the ticket has been
waiting for a long time, I propose to postpone these minor questions to
later tickets.
If the bot gives a green light, except for the startup module, I will give
a positive review. This may have to wait for one week, as I am traveling
next week.
One last thing : the following lines have to be modified, as this has been
implemented :
.. TODO:: modify CyclotomicField to add a (partial)
conversion from UCF
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8327#comment:141>
Sage <http://www.sagemath.org>
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