Chromatic polynomial Graph g Graph theory Polynomial approximation 4 cycles By products Chromatic equivalence and uniqueness Chromatic polynomials Chromatic uniqueness Chromatically closed Chromatically equivalent Chromatically equivalent graph Chromatically unique Chromatically unique graph Chromatically unique graphs Complete multipartite graphs Computational methods Cut vertices Equivalence classes Equivalence relations Multipartite graph Numerical analysis Partite graphs Partite sets Polynomials Relative-closed Set theory Two-graphs