Containment conjecture for I-Rayleigh matroids
Let a matroid belong to one of the listed classes: planar-graph matroids, graph matroids, regular matroids, sixth-root-of-unity matroids, half-plane-property matroids, or B-Rayleigh matroids. I-Rayleigh containment conjecture. Every such matroid is I-Rayleigh. The statement appears in the paper's concluding list of conjectural class containments and is not established there.
References
Primary source
David G. Wagner, “Negatively correlated random variables and Mason's conjecture”, arXiv:math/0602648 (2006).
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