#19737: SetPartition.to_permutation().cycle_tuples() is not the identity
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Reporter: mantepse | Owner:
Type: defect | Status: needs_review
Priority: major | Milestone: sage-7.0
Component: combinatorics | Resolution:
Keywords: set partitions, | Merged in:
permutations | Reviewers:
Authors: Martin Rubey | Work issues:
Report Upstream: N/A | Commit:
Branch: | c6a3939d2e18efe3906e1f959dc5c019c921a944
u/mantepse/setpartition_to_permutation___cycle_tuples___is_not_the_identity|
Stopgaps:
Dependencies: |
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Comment (by mantepse):
I half-got it, but it looks more complicated. Apparently, it is not
possible to use the same parent. Currently, there is a parent
{{{SetPartitions}}} with element class {{{SetPartition}}}. Of course, it
would be desirable to make an instance of {{{IntegerSetPartition}}} also
have parent {{{SetPartitions}}}, but I do not know how to do this yet.
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Ticket URL: <http://trac.sagemath.org/ticket/19737#comment:21>
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