#16464: cyclotomic_cosets for any finite ring
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Reporter: | Owner:
vdelecroix | Status: needs_review
Type: | Milestone: sage-6.3
enhancement | Resolution:
Priority: major | Merged in:
Component: | Reviewers:
number theory | Work issues:
Keywords: | Commit:
Authors: | 21cb1a83280c9a0c7ddd6c418dad4d053024b570
Vincent Delecroix | Stopgaps:
Report Upstream: N/A |
Branch: |
public/16464 |
Dependencies: |
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Comment (by ncohen):
A new commit, with two questions :
1)
{{{
+ if n <= 2 or not n.is_prime():
+ raise ValueError("the argument n must be an odd prime")
}}}
Why don't you test that `n` is odd ?
2) Why would this be allowed ? It really does NOT have the same behaviour.
{{{
- n = max(S1+S2)+1
- if not(is_a_splitting(S1,S2,n)):
+ n = len(S1) + len(S2) + 1
+ if not is_a_splitting(S1,S2,n):
}}}
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/16464#comment:12>
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