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Decomposition of Quaternary Signed-Graphic Matroids (1510.06727v2)

Published 22 Oct 2015 in math.CO

Abstract: In this work we provide a decomposition theorem for the class of quaternary and non-binary signed-graphic matroids. This generalizes previous results for binary signed-graphic matroids and graphic matroids, and it provides the theoretical basis for a recognition algorithm.