#14443: Implement Disjoint Sum and Various Products of Quivers
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Reporter: gmoose05 | Owner: sage-combinat
Type: enhancement | Status: new
Priority: major | Milestone: sage-5.12
Component: combinatorics | Resolution:
Keywords: quiver | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by chapoton):
And one has already the `is_bipartite` method for quivers, but its code is
a bit strange:
{{{
is_bip = sum( [ innie[i]*outie[i] for i in range(len(innie)) ] ) == 0
}}}
could be written instead
{{{
is_bip = not any(innie[i] and outie[i] for i in range(len(innie)))
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/14443#comment:5>
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