#14140: Reorganization of set partitions
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Reporter: stumpc5 | Owner: sage-combinat
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.8
Component: combinatorics | Resolution:
Keywords: set partitions | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Travis Scrimshaw | Merged in:
Dependencies: #13605 | Stopgaps:
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Comment (by ghseeli):
I have been doing some work on diagram / partition algebras, which make
extensive use of !SetPartitions in their implementation. I think these
modifications are definitely helpful. I would like to point out though
that there is actually already a method within Sage to convert a list to a
set partition, contained under sage.combinat.partition_algebra called
"to_set_partition." That being said, this reorganization is definitely
needed because the current !SetPartitions class is a pain to work with
when you only want specific ones.
Also, Chris, what are the 9 different classes of set partitions currently
in Sage? Are all of these encompassed by this patch, or do they need more
work? I am almost done with some code that would implement structures such
as "!SetPartitionsAk" as an algebra, since they are better understood and
used that way.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14140#comment:13>
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