Concatenating bipartite graphs

Let x,y∈(0,1], and let A, B, C be disjoint nonempty stable subsets of a graph G, where every vertex in A has at least x|B| neighbours in B, and every vertex in B has at least y|C| neighbours in C, and there are no edges between A, C. We denote by φ(x,y) the maximum z such that, in all such graphs G,...

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Bibliographic Details
Main Authors: Chudnovsky, M, Hompe, P, Scott, A, Seymour, P, Spirkl, S
Format: Journal article
Language:English
Published: Electronic Journal of Combinatorics 2022

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