#18021: gyration orbits method for AlternatingSignMatrix and add optional
parameter
for gyration method.
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Reporter: egunawan | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.6
Component: combinatorics | Resolution:
Keywords: days64, gyration, alternating | Merged in:
sign matrix | Reviewers:
Authors: | Work issues:
Report Upstream: N/A | Commit:
Branch: | Stopgaps:
Dependencies: |
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Description changed by egunawan:
Old description:
> In class :class:`AlternatingSignMatrix` (and later FullyPackedLoop):
> * add a method for returning the list of gyration orbits
>
> For method :meth:`AlternatingSignMatrix.gyration`
> * optional parameter k (default k=1) to indicate how many times to gyrate
> on the ASM
> * add gyration method to :class:`FullyPackedLoop` ?
>
> See Ticket #17988 (implementing FullyPackedLoop class)
New description:
To see the work in progress, do "git pull trac u/egunawan/gyrationorbit"
In class :class:`AlternatingSignMatrix` (and later FullyPackedLoop):
* add a method :meth:`obtain_gyration_orbit` for returning the orbit of
self.
In class :class:`AlternatingSignMatrices`:
* add a method :meth:`gyration_orbits` for returning the list of orbits of
alternating sign matrices of order n.
* add a method :meth:`gyration_orbit_size` for returning the sizes of
orbits of alternating sign matrices of order n.
For method :meth:`AlternatingSignMatrix.gyration`
* optional parameter k (default k=1) to indicate how many times to gyrate
on the ASM
* add gyration method to :class:`FullyPackedLoop` ?
See Ticket #17988 (implementing FullyPackedLoop class)
We are implementing the code that Travis Scrimshaw gave us.
--
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Ticket URL: <http://trac.sagemath.org/ticket/18021#comment:2>
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