Konstantinos Papalamprou (London School of Economics) |
Leonidas Pitsoulis (Aristotle University of Thessaloniki) |
We introduce the notion of graphic cocircuits and show that a large class of regular matroids with graphic cocircuits belongs to the class of signed-graphic matroids. Moreover, we provide an algorithm which determines whether a cographic matroid with graphic cocircuits is signed-graphic or not. |
ArXived at: https://dx.doi.org/10.4204/EPTCS.4.4 | bibtex | |
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