#11738: Various issues in is_interval and is_chordal
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Reporter: ddestrada | Owner: jason, ncohen, rlm
Type: defect | Status: positive_review
Priority: major | Milestone: sage-4.7.2
Component: graph theory | Keywords: interval chordal
Work_issues: | Upstream: N/A
Reviewer: Nathann Cohen | Author: Diego de Estrada
Merged: | Dependencies:
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Description changed by ncohen:
Old description:
> There is a bug in the return line of is_chordal when asked for a
> certificate and the graph has more than one connected component.
>
> Also, here there is an enhancement to avoid the explicit generation of
> subsets in is_interval and is_chordal, which is expensive, using
> issubset() instead.
>
> (This ticket should be coordinated with #11735)
>
> Apply only :
> * [attachment:trac_11738.patch]
New description:
There is a bug in the return line of is_chordal when asked for a
certificate and the graph has more than one connected component.
Also, here there is an enhancement to avoid the explicit generation of
subsets in is_interval and is_chordal, which is expensive, using
issubset() instead.
Apply only :
* [attachment:trac_11738.patch]
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11738#comment:6>
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