Improves the threshold for a chromatic polynomial inequality to x ≥ 10Δ^{3/2} and proves the Dong et al. conjecture on higher derivatives for x ≤ -3.01Δk.
Seymour, Two chromatic polynomial conjectures,J
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On derivatives and higher-order derivatives of chromatic polynomials
Improves the threshold for a chromatic polynomial inequality to x ≥ 10Δ^{3/2} and proves the Dong et al. conjecture on higher derivatives for x ≤ -3.01Δk.