#19123: LatticePoset: add is_vertically_decomposable
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Reporter: jmantysalo | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.9
Component: combinatorics | Resolution:
Keywords: | Merged in:
Authors: Jori Mäntysalo | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/jmantysalo/vertically_decomposable|
0d472a68c9edf4ddea1404ff0cb6d2f508de55d0
Dependencies: | Stopgaps:
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Comment (by ncohen):
Sounds good, but don't you think it may be useful to *know* where the
poset splits? Also, why is it only defined for lattices? The algorithm
works in all cases.
I did not test it, but from the code's look I am not sure that it works
for the chain of length 2, as the docstring indicates. Could you add a
doctest for that?
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/19123#comment:3>
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