#9972: Add fan morphisms
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Reporter: novoselt | Owner: mhampton
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-4.6.1
Component: geometry | Keywords:
Author: Andrey Novoseltsev, Volker Braun | Upstream: N/A
Reviewer: Volker Braun, Andrey Novoseltsev | Merged:
Work_issues: |
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Description changed by novoselt:
Old description:
> This ticket adds a module for fan morphisms - morphisms between lattices
> with specified fans in the domain and codomain, which are compatible with
> this morphism. Compatibility check and automatic construction of the
> codomain fan or refinement of the domain fan are implemented.
>
> Patch order (applies cleanly to sage-4.6.rc0):
> 1. [attachment:trac_9972_add_cone_embedding.patch]
> 1. [attachment:trac_9972_improve_element_constructors.patch]
> 1. [attachment:trac_9972_remove_enhanced_cones_and_fans.patch]
> 1. [attachment:trac_9972_add_fan_morphisms.patch]
> 1. [attachment:trac_9972_fix_fan_warning.patch]
New description:
This ticket adds a module for fan morphisms - morphisms between lattices
with specified fans in the domain and codomain, which are compatible with
this morphism. Compatibility check and automatic construction of the
codomain fan or refinement of the domain fan are implemented.
Patch order (applies cleanly to sage-4.6.rc0):
1. [attachment:trac_9972_add_cone_embedding.patch]
1. [attachment:trac_9972_improve_element_constructors.patch]
1. [attachment:trac_9972_remove_enhanced_cones_and_fans.patch]
1. [attachment:trac_9972_add_fan_morphisms.patch]
1. [attachment:trac_9972_fix_fan_warning.patch]
See #9604 for dependencies.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9972#comment:50>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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