#14197: Add map from PerfectMatchings to Permutations. Fix string
representation in
perfect matchings.
-----------------------------------------------+----------------------------
Reporter: ahmorales | Owner: sage-combinat
Type: enhancement | Status: needs_review
Priority: minor | Milestone: sage-5.8
Component: combinatorics | Resolution:
Keywords: perfect matchings | Work issues:
Report Upstream: N/A | Reviewers: Alejandro
Morales, Christian Stump
Authors: Chris Berg, Christian Stump | Merged in:
Dependencies: | Stopgaps:
-----------------------------------------------+----------------------------
Changes (by {'newvalue': u'Chris Berg, Christian Stump', 'oldvalue': u'Chris
Berg'}):
* reviewer: Alejandro Morales => Alejandro Morales, Christian Stump
* author: Chris Berg => Chris Berg, Christian Stump
Old description:
> Add a function that takes a perfect matching and returns the associated
> fixed-point free involution.
>
> Lastly, change the string representation "_repr_" from PerfectMatching
> [(1,2), (3,4)] to [(1,2), (3,4)].
New description:
Provides some further functionalities for perfect matchings:
- implements the maps to fixed-point free involutions and to the
corresponding graph
- implements a hash
- reorders the ordering of the elements in the iterator through
!PerfectMatchings
- removes the string "Perfect matching" from the string representation.
--
Comment:
The patchbot is happy, so I think it is ready to go!
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14197#comment:9>
Sage <http://www.sagemath.org>
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