#17226: LatticePoset: add Frattini sublattice
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Reporter: jmantysalo | Owner:
Type: enhancement | Status: needs_review
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 | b20f025dc034b16e3f1d53968668030131ef8ae1
Dependencies: #18567 | Stopgaps:
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Comment (by jmantysalo):
Btw, creation of a lattice always [pre]computes join and meet matrices.
Now, a function returning lattice could precompute them faster - in this
case just by taking right rows and colums from the matrices of original
lattice.
This is not done here. I suppose that we got faster lattice creation in
the future.
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Ticket URL: <http://trac.sagemath.org/ticket/17226#comment:10>
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