Obstructions for three-coloring graphs without induced paths on six vertices
نویسندگان
چکیده
We prove that there are 24 4-critical P6-free graphs, and give the complete list. We remark that, if H is connected and not a subgraph of P6, there are infinitely many 4-critical H-free graphs. Our result answers questions of Golovach et al. and Seymour.
منابع مشابه
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ورودعنوان ژورنال:
- CoRR
دوره abs/1504.06979 شماره
صفحات -
تاریخ انتشار 2015