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JCT
2007
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JCT 2007
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Excluding a planar graph from GF(q)-representable matroids
13 years 10 months ago
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www.math.uwaterloo.ca
Abstract. We prove that a binary matroid with huge branchwidth contains the cycle matroid of a large grid as a minor. This implies that an infinite antichain of binary matroids ca...
Jim Geelen, Bert Gerards, Geoff Whittle
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