Single Commodity Flow Algorithms for Lifts of Graphic and Cographic Matroids
Consider a binary matroid M given by its matrix representation. We show that if M is a lift of a graphic or a cographic matroid, then in polynomial time we can either solve the single commodity flow problem for M or find an obstruction for which the Max-Flow Min-Cut relation does not hold. The key t...
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| Language: | en |
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2013
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| Online Access: | http://hdl.handle.net/10012/7225 |