#9337: Add toric divisors
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Reporter: vbraun | Owner: AlexGhitza
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-4.6
Component: algebraic geometry | Keywords:
Author: Volker Braun | Upstream: N/A
Reviewer: Andrey Novoseltsev | Merged:
Work_issues: |
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Changes (by vbraun):
* status: needs_info => needs_review
Comment:
I made all changes. Now it works as follows:
{{{
sage: P2 = toric_varieties.P2()
sage: P2.coordinate_ring().inject_variables()
Defining x, y, z
sage: G = P2.divisor_group() # same as divisor_group(divisors='T-Weil')
sage: G(x+y)
...
ValueError: The polynomial x + y must consist of a single monomial.
sage: G(x*y)
Divisor x + y
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9337#comment:19>
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