#9972: Add toric lattice morphisms
-------------------------------------+--------------------------------------
Reporter: novoselt | Owner: mhampton
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-4.6
Component: geometry | Keywords:
Author: Andrey Novoseltsev | Upstream: N/A
Reviewer: Volker Braun | Merged:
Work_issues: switch to FanMorphism |
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Comment(by vbraun):
I couldn't figure out whether your patch goes before or after mine, so I
folded it into one and fixed everything.
I changed
{{{
# Optimization for fans generated by a single cone
if len(cones) == 1:
cone = cones[0]
return RationalPolyhedralFan((tuple(range(cone.nrays())), ),
cone.rays(), lattice,
is_complete=lattice.dimension() >
0)
}}}
to `is_complete=(lattice.dimension()==0)`.
Now that we agree on this ;-) can you go ahead and remove the `Enhanced*`
versions of fans and cones? Then we can go on with fan morphisms...
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9972#comment:38>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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