Discrete Mathematics · 1979 · 265 citations · 11 references
Geometric Graph TheoryGraph TheoryPlanar GraphDiscrete MathematicsExtremal Graph TheoryAcyclic ColoringsCombinatorial Optimization
11
Acyclic colorings of planar graphs
Branko Grünbaum · Israel Journal of Mathematics · 1973 · 401 citations
Every planar graph has an acyclic 8-coloring
John Mitchem · Duke Mathematical Journal · 1974 · 76 citations