#19196: LatticePoset: add is_dismantlable()
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Reporter: jmantysalo | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-wishlist
Component: combinatorics | Resolution:
Keywords: | Merged in:
Authors: Jori Mäntysalo | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/jmantysalo/latticeposet__add_is_dismantlable__|
f9bc731924fd81f33095b3d18cc9920ef9e55dec
Dependencies: | Stopgaps:
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Changes (by jmantysalo):
* status: new => needs_review
* commit: => f9bc731924fd81f33095b3d18cc9920ef9e55dec
Comment:
Here it is. This seems to be quite fast, but I am sure that
`H.is_connected()` can be changed to some digraph function checking if
`upper` is reachable from `lower`. Optimization can be made later, so I
mark this as ''needs_review''.
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New commits:
||[http://git.sagemath.org/sage.git/commit/?id=f9bc731924fd81f33095b3d18cc9920ef9e55dec
f9bc731]||{{{Added function is_dismantlable().}}}||
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Ticket URL: <http://trac.sagemath.org/ticket/19196#comment:2>
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