37 citations · 88 across the 17 of their papers we have counts for
17 papers
Rainbow triangles and the Erdős-Hajnal problem in projective geometries
Carolyn Chun, James Dylan Douthitt, Wayne Ge +3
We formulate a geometric version of the Erdős-Hajnal conjecture that applies to finite projective geometries rather than graphs, in both its usual 'induced' form and the multicolou…
The natural matroid of an integer polymatroid
Joseph E. Bonin, Carolyn Chun, Tara Fife
The natural matroid of an integer polymatroid was introduced to show that a simple construction of integer polymatroids from matroids yields all integer polymatroids. As we illustr…
The excluded minors for lattice path polymatroids
Joseph Bonin, Carolyn Chun, Tara Fife
We find the excluded minors for the minor-closed class of lattice path polymatroids as a subclass of the minor-closed class of Boolean polymatroids. Like lattice path matroids and…
Decomposable polymatroids and connections with graph coloring
Joseph E. Bonin, Carolyn Chun
We introduce ideas that complement the many known connections between polymatroids and graph coloring. Given a hypergraph that satisfies certain conditions, we construct polymatroi…
The excluded 3-minors for vf-safe delta-matroids
Joseph E Bonin, Carolyn Chun, Steven D Noble
Vf-safe delta-matroids have the desirable property of behaving well under certain duality operations. Several important classes of delta-matroids are known to be vf-safe, including…
Delta-matroids as subsystems of sequences of Higgs lifts
Joseph E Bonin, Carolyn Chun, Steven D Noble
In her paper "Generalized matroids and supermodular colourings", Tardos studied special delta-matroids obtained from sequences of Higgs lifts; these are the full Higgs lift delta-m…