Kierstead-Kostochka-Mydlarz-Szemerédi algorithmic Ore-type conjecture

From papers

Let an equitable kk-coloring be a proper kk-coloring whose color classes have sizes differing by at most one, and let d(x)d(x) denote the degree of a vertex xx. Kierstead-Kostochka-Mydlarz-Szemerédi conjecture. If GG is a graph with d(x)+d(y)<2kd(x)+d(y)<2k for all xyE(G)xy∈E(G), then there exists a polynomial-time algorithm to determine an equitable kk-coloring of GG.

This is the algorithmic counterpart of the Ore-type equitable-coloring conjectures. The source says it holds when kk is at least a fixed positive proportion of the order of GG, while smaller values are not covered by the paper.

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Sources & referencesView supporting material

Primary source

Yangyang Cheng, Zhenyu Li, Wanting Sun and Guanghui Wang, “A step toward Chen-Lih-Wu conjecture”, arXiv:2511.03957 (2025).

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