Polychromatic 4-coloring of cubic bipartite plane graphs
Polychromatic 4-coloring of cubic bipartite plane graphs
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DOI:
10.1016/j.disc.2011.11.016
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发表时间:
2012-02
期刊:
影响因子:
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通讯作者:
Elad Horev;M. J. Katz;Roi Krakovski;Atsuhiro Nakamoto
中科院分区:
文献类型:
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作者:
Elad Horev;M. J. Katz;Roi Krakovski;Atsuhiro Nakamoto
It is proved that the vertices of a cubic bipartite plane graph can be colored with four colors such that each face meets all four colors. This is tight, since any such graph contains at least six faces of size four.