#17216: Poset / LatticePoset: [meet|join]matrix algorithm
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Reporter: jmantysalo | Owner:
Type: enhancement | Status: new
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/poset___latticeposet___meet_join_matrix_algorithm|
8b2ab93a44970afc31a12dc0df57883f4b27eda6
Dependencies: | Stopgaps:
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Changes (by {'newvalue': u'Jori M\xe4ntysalo', 'oldvalue': ''}):
* cc: ncohen (added)
* commit: => 8b2ab93a44970afc31a12dc0df57883f4b27eda6
* author: => Jori Mäntysalo
Comment:
A slightly better(?) version for `_meet()` is done. Somebody could check
if I did something stupid.
It seems to already have a complexity on `O(n^2.5)`. I'm not sure if it
would be much faster to just check if a poset is meet-semilattice.
Probably no.
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New commits:
||[http://git.sagemath.org/sage.git/commit/?id=8b2ab93a44970afc31a12dc0df57883f4b27eda6
8b2ab93]||{{{Slight simplification for meet-matrix.}}}||
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Ticket URL: <http://trac.sagemath.org/ticket/17216#comment:2>
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