#13546: Bug in is_perfect
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Reporter: azi | Owner: jason, ncohen, rlm
Type: defect | Status: positive_review
Priority: critical | Milestone: sage-5.7
Component: graph theory | Resolution:
Keywords: is_perfect,graph theory | Work issues:
Report Upstream: N/A | Reviewers: Jernej Azarija,
Sébastien Labbé
Authors: Nathann Cohen | Merged in:
Dependencies: #8952 | Stopgaps:
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Changes (by azi):
* status: needs_review => positive_review
Comment:
Hello!
Thanks for the clarifications.
What I don't like is this. The "looped" here implies as if the graph is
non-simple.
{{{
sage: G = graphs.PetersenGraph()
sage: G
Petersen graph: Graph on 10 vertices
sage: Graph(G.sparse6_string())
Looped multi-graph on 10 vertices
}}}
I see that this is not an issue with is_perfect hence I'll flag this
ticket with a positive review. But I really don't like the current way we
are handling multigraphs as it introduces messy situations and I would
really like to get a clear distinctions for this.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13546#comment:31>
Sage <http://www.sagemath.org>
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