#11599: Wrap fan moriphism in toric morphism
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Reporter: vbraun | Owner: AlexGhitza
Type: enhancement | Status: new
Priority: major | Milestone: sage-4.7.2
Component: algebraic geometry | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Comment(by novoselt):
They don't elaborate the relation with fan morphisms because they consider
arbitrary maps of toric varieties as varieties, including those that don't
care about toric structure at all. In particular it is applicable to
equivariant morphisms and orbit inclusions. And even in these cases it is
necessary to use roots if one of the varieties is not smooth. E.g. a
resolution of a singular variety would correspond to the identity map of
lattices, but would involve roots in homogeneous coordinates.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11599#comment:4>
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