#14353: Factor toric morphism into surjective and generically injective
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Reporter: vbraun | Owner: AlexGhitza
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-5.9
Component: algebraic geometry | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Volker Braun | Merged in:
Dependencies: | Stopgaps:
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Changes (by novoselt):
* status: needs_review => needs_work
Comment:
The support of a fan is in general not a cone at all! Unless I have a
severe misunderstanding, it is a set-theoretic union of all its cones,
e.g. for the fan generated by 1-cones (1,0) and (0,1) is not a cone. It
would be great to have a method for support, but I am not sure how we can
represent it at the moment apart from the fan itself.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14353#comment:2>
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