#20895: Computing ordinary models of plane curves
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Reporter: gjorgenson | Owner:
Type: enhancement | Status: needs_review
Priority: minor | Milestone: sage-7.3
Component: algebraic | Resolution:
geometry |
Keywords: gsoc2016 | Merged in:
Authors: Grayson Jorgenson | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/gjorgenson/ticket/20895 | 837ddb8b01cb421e7568545f8f2181c29a47a389
Dependencies: | Stopgaps:
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Changes (by gjorgenson):
* status: new => needs_review
Comment:
I implemented a new approach for excellent_position that no longer
requires computing intersection points and works for number fields. I
think the computations are faster now and I revised ordinary_model to
leave the checks to excellent_position. ordinary_model works for number
fields as well by returning a curve defined over an extension if any of
the coordinates of the non-ordinary singularities are not contained in the
original base field.
I also cleaned up the code and removed unnecessary changes that were
implemented in previous commits, such as the line function for projective
space.
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Ticket URL: <https://trac.sagemath.org/ticket/20895#comment:10>
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