#9296: Add lattice computations for convex polyhedral cones
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Reporter: vbraun | Owner: mhampton
Type: enhancement | Status: needs_info
Priority: major | Milestone: sage-4.5
Component: geometry | Keywords:
Author: Volker Braun | Upstream: N/A
Reviewer: Andrey Novoseltsev | Merged:
Work_issues: |
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Comment(by novoselt):
I have rewritten `ToricLattice` to completely mimic all classes of
`FreeModule_over_pid`, so far everything works and didn't require any
adjustments to other modules, which is good. Will add sublattice/quotient
lattices and post a patch today or tomorrow. Are you OK with these names:
* `submodule` to construct a sublattice (that is the inherited name, so
the question is basically should there be `sublattice` alias or not);
* `quotient` (same as `/` operator) to get the usual quotient which can
contain torsion;
* `quotient_lattice(sublattice, <target_specification>)` to construct the
quotient by `sublattice` (raise exception if it is not saturated) as a
toric lattice with possible specification of what the result should be. If
we want to use `lift`, it maybe necessary to add another class.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9296#comment:17>
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