#20369: Add function to get unitary divisors
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Reporter: jmantysalo | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-7.2
Component: number theory | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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Add a function to get unitary divisors of an integer / of an element of
UFD. For definition see https://en.wikipedia.org/wiki/Unitary_divisor.
Trivial way to make this function is
{{{
def unitary_divisors(n):
return [prod([p[0]^p[1] for p in f]) for f in
Set(factor(n)).subsets()]
}}}
Before proceeding we should discuss about what to put in the global
namespace. For that discussion see https://groups.google.com/forum/#!topic
/sage-devel/DHMCJydPqJU.
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Ticket URL: <http://trac.sagemath.org/ticket/20369>
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