#12831: implement product of posets
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Reporter: chapoton | Owner: sage-combinat
Type: enhancement | Status: new
Priority: major | Milestone: sage-5.1
Component: combinatorics | Keywords: poset, product
Work issues: | Report Upstream: N/A
Reviewers: | Authors:
Merged in: | Dependencies:
Stopgaps: |
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There currently lacks an implementation of the (cartesian) product of
posets.
{{{
sage: P2=Posets.ChainPoset(2)
sage: P4=Posets.ChainPoset(4)
sage: Q=P2.product(P4)
}}}
This should return a poset with 8 elements, with Hasse diagram a 2 x 4
grid.
It would be nice to have a fast enough procedure for this.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12831>
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