#18562: LatticePoset: add random_maximal_sublattice()
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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/latticeposet__add_random_maximal_sublattice__|
f9ab830ba5e62e54df37321b4261b012407fd283
Dependencies: | Stopgaps:
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Changes (by jmantysalo):
* cc: chapoton, ncohen (added)
* commit: => f9ab830ba5e62e54df37321b4261b012407fd283
Comment:
On the road to `frattini_sublattice()`... but first a smaller function.
1) What the ¤$#@@& for sphinx complains about indentation?
2) Should I mention the "algorithm"? That is, to say that I just get a
random permutation `p` of elements and then try to add elements in `p` one
by one, skipping those where adding it would generate whole lattice.
3) This is slower than it should be, because it is unneeded for
`sublattice` to return a lattice (plain list would do). But I think that
this is fast enought for at least testing.
4) What you say about `element_constructor` -parameter?
(Sidenote: I also added `sublattice()` to index of functions.)
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Ticket URL: <http://trac.sagemath.org/ticket/18562#comment:2>
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