#16834: Change ring fails for affine morphisms.
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Reporter: gjorgenson | Owner: gjorgenson
Type: defect | Status: needs_work
Priority: minor | Milestone: sage-6.4
Component: algebraic | Resolution:
geometry | Merged in:
Keywords: | Reviewers:
Authors: | Work issues:
Report Upstream: N/A | Commit:
Branch: | d3075c649bf1d23c07bed646775f7ed84fe4d7eb
u/gjorgenson/ticket/16834 | Stopgaps:
Dependencies: |
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Changes (by bhutz):
* status: needs_review => needs_work
Comment:
I'd like to see the example a little more complex. Say at least dimension
2 with non-constant polynomials.
For the code itself you can get rid of the helper list F with the
following
{{{
G=[F.change_ring(R) for F in self._polys]
}}}
Another thought. What happens when the domain and codomain are different?
This code is assuming that the domain and codomain are the same.
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Ticket URL: <http://trac.sagemath.org/ticket/16834#comment:3>
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