#13008: refactor squarefree_decomposition to allow different rings to chose
different implementations
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Reporter: saraedum | Owner:
Type: enhancement | AlexGhitza
Priority: minor | Status:
Component: algebra | needs_review
Keywords: polynomial, squarefree, sd59 | Milestone: sage-6.3
Authors: Julian Rueth | Resolution:
Report Upstream: N/A | Merged in:
Branch: u/saraedum/ticket/13008 | Reviewers:
Stopgaps: | Work issues:
| Dependencies: #12404,
| #13048
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Changes (by {'newvalue': u'Julian Rueth', 'oldvalue': ''}):
* keywords: polynomial, squarefree => polynomial, squarefree, sd59
* status: new => needs_review
* author: => Julian Rueth
Old description:
> Refactor {{{squarefree_decomposition()}}} of univariate polynomials to
> call {{{_squarefree_decomposition_univariate()}}} of the base ring. This
> makes it easier to have different algorithms in different rings.
>
> This will make it easier to implement square-free decomposition over
> perfect fields and separably generated extensions of perfect fields.
New description:
Refactor {{{squarefree_decomposition()}}} of univariate polynomials to
call {{{_squarefree_decomposition_univariate()}}} of the base ring. This
makes it easier to have different algorithms in different rings.
This will make it easier to implement square-free decomposition over
perfect fields and separably generated extensions of perfect fields.
Also, the implemented algorithms only work for some base fields. The
checks are now more specific.
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Ticket URL: <http://trac.sagemath.org/ticket/13008#comment:6>
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