#17316: RegularMatroid.is_isomorphic returns false positives
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Reporter: Stefan | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.4
Component: matroid theory | Resolution:
Keywords: matroid, isomorphism | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by Rudi):
I could not resist implementing this, so I just did all of the above,
except 4). But as I said, I cannot create a patch from my machine. So I
just attached my new LinearMatroid.pyx file. Anyone who can create a patch
for this ticket now only needs to upload my file.
Not sure if it matters, but I created this .pyx file by modifying the
latest release candidate.
I'm still a bit bothered about the way groundset elements are changed into
strings in _hypergraph. If this is not absolutely necessary, I'd like to
remove that translation. It creates a bit of extra work later on in
_hypertest that potentially gets repeated a lot.
--
Ticket URL: <http://trac.sagemath.org/ticket/17316#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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