#17226: LatticePoset: add Frattini sublattice
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Reporter: jmantysalo | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.9
Component: combinatorics | Resolution:
Keywords: poset, lattice | Merged in:
Authors: Jori Mäntysalo | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/jmantysalo/frattini_sublattice | b1e97bc9896e7c4ede3a948b4b7d321aba1f3fbb
Dependencies: #18567 | Stopgaps:
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Changes (by {'newvalue': u'Jori M\xe4ntysalo', 'oldvalue': ''}):
* cc: tscrim (added)
* commit: => b1e97bc9896e7c4ede3a948b4b7d321aba1f3fbb
* milestone: sage-wishlist => sage-6.9
* author: => Jori Mäntysalo
Comment:
Travis, you might want to check this. I think that I did something wrong,
as there is now included code for `maximal_sublattices()`, which should be
only dependence. But at least you can see the new function.
It is not easy to find good example lattice. I'll continue searching.
Maybe something with three maximal sublattices and so that the Frattini
sublattice will something more than just a chain, but not almost all
elements.
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New commits:
||[http://git.sagemath.org/sage.git/commit/?id=24b10dd3197a804a8c7e7d477d0e01f9026bb734
24b10dd]||{{{Add maximal_sublattices().}}}||
||[http://git.sagemath.org/sage.git/commit/?id=ffe4fb81f8a5edc572d01a8194e4c64eee7ca131
ffe4fb8]||{{{Merge branch
'u/jmantysalo/latticeposet__add_maximal_sublattices_iterator__' of
git://trac.sagemath.org/sage into
u/jmantysalo/latticeposet__add_maximal_sublattices_iterator__}}}||
||[http://git.sagemath.org/sage.git/commit/?id=d85c87373d6d2ec200e07efa2943e40bddf819ad
d85c873]||{{{Some reviewer tweaks.}}}||
||[http://git.sagemath.org/sage.git/commit/?id=b1e97bc9896e7c4ede3a948b4b7d321aba1f3fbb
b1e97bc]||{{{Added function frattini_sublattice().}}}||
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Ticket URL: <http://trac.sagemath.org/ticket/17226#comment:6>
Sage <http://www.sagemath.org>
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