#18448: Add test if a matroid is binary
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Reporter: Rudi | Owner:
Type: enhancement | Status: needs_review
Priority: minor | Milestone: sage-6.7
Component: matroid theory | Resolution:
Keywords: | Merged in:
Authors: Rudi Pendavingh | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/Rudi/add_test_if_a_matroid_is_binary|
fd8fe0fc910afb6e5501097e335b25571520de31
Dependencies: | Stopgaps:
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Changes (by {'newvalue': u'Rudi Pendavingh', 'oldvalue': ''}):
* status: new => needs_review
* author: => Rudi Pendavingh
* cc: Stefan (added)
* component: PLEASE CHANGE => matroid theory
* priority: major => minor
* commit: => fd8fe0fc910afb6e5501097e335b25571520de31
* type: PLEASE CHANGE => enhancement
Old description:
New description:
Add a simple test if a general matroid is binary: construct the likely
candidate binary matroid, then check for isomorphism.
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Comment:
All done. I also noted that BinaryMatroid._is_isomorphism() did not revert
to _is_field_isomorphism if both matroids were binary, repaired that
omission.
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New commits:
||[http://git.sagemath.org/sage.git/commit/?id=fd8fe0fc910afb6e5501097e335b25571520de31
fd8fe0f]||{{{Added Matroid.is_binary()}}}||
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Ticket URL: <http://trac.sagemath.org/ticket/18448#comment:2>
Sage <http://www.sagemath.org>
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