#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-5.13
Component: combinatorics | Resolution:
Keywords: quiver | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/gmoose05/ticket/14443 | b75ba3d6716526790cd0b2c345cdb57431bd8d6c
Dependencies: | Stopgaps:
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Changes (by gmoose05):
* commit: => b75ba3d6716526790cd0b2c345cdb57431bd8d6c
Comment:
Replying to [comment:5 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)))
> }}}
Dear Frederic,
I just made this change from Sage Days 54 as an example using the new GIT
workflow.
I will get to the other changes regarding square, triangle, etc. product
later on.
Gregg
----
New commits:
||[changeset:b75ba3d]||rewrote is_bipartite method for quivers||
--
Ticket URL: <http://trac.sagemath.org/ticket/14443#comment:8>
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