Disjoint dijoins

A "dijoin" in a digraph is a set of edges meeting every directed cut. D.R. Woodall conjectured in 1976 that if G is a digraph, and every directed cut of G has at least k edges, then there are k pairwise disjoint dijoins. This remains open, but a capacitated version is known to be false. In...

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Bibliographic Details
Main Authors: Chudnovsky, M, Edwards, K, Kim, R, Scott, A, Seymour, P
Format: Journal article
Published: Elsevier 2016