#20676: Projective closure and affine patches for algebraic curves
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Reporter: gjorgenson | Owner:
Type: enhancement | Status: new
Priority: minor | Milestone: sage-7.3
Component: algebraic | Resolution:
geometry | Merged in:
Keywords: | Reviewers:
Authors: Grayson Jorgenson | Work issues:
Report Upstream: N/A | Commit:
Branch: | b3002ef28b0b1f9ae39b1222c446625037420db9
u/gjorgenson/ticket/20676 | Stopgaps:
Dependencies: |
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Comment (by bhutz):
As Grayson pointed out the twisted cubic is the typical example for
needing the gb.
For the variables. Actually it is not a good idea to name them the same as
they really aren't the same variables. More importantly, you need to be
careful to keep track of the embedding as well, since if you homogenize
the affine patch, you would expect to get something back in the same
projective space. Take a look at the functionality for projective space
and projective subschemes (or in #16838) to see what I mean.
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Ticket URL: <http://trac.sagemath.org/ticket/20676#comment:5>
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