2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/137585We prove that for any graph G at least one of G or $\bar{G}$ satisfies $χ\leq {1/4}ω+ {3/4}Δ+ 1$. In particular, self-complementary graphs satisfy this bound.CombinatoricsAt Least Half Of All Graphs Satisfy χ\leq {1/4}ω+ {3/4}Δ+ 1text