#16464: cyclotomic_cosets for any finite ring
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Reporter: | Owner:
vdelecroix | Status: needs_info
Type: | Milestone: sage-6.3
enhancement | Resolution:
Priority: major | Merged in:
Component: | Reviewers:
number theory | Work issues:
Keywords: | Commit:
Authors: | b07ad014b69fc326233a570e41fbdad93402049c
Vincent Delecroix | Stopgaps:
Report Upstream: N/A |
Branch: |
public/16464 |
Dependencies: |
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Comment (by vdelecroix):
Replying to [comment:18 ncohen]:
> 1> Before the end, I would also like to change `len(S1.union(S2)) !=
n-1` in `is_a_splitting` by `S1.difference(S2)`. Makes more sense.
>
> Or `len(S1 & S2)`.
or `S1 & S2`. It is faster to call `__nonzero__` rather than `__len__`.
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Ticket URL: <http://trac.sagemath.org/ticket/16464#comment:20>
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