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Informace o publikaci
Coloring of triangle-free graphs on the double torus
Autoři | |
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Rok publikování | 2008 |
Druh | Článek v odborném periodiku |
Časopis / Zdroj | SIAM Journal on Discrete Mathematics |
Citace | |
Doi | http://dx.doi.org/10.1137/07067920X |
Klíčová slova | triangle-free graphs; double torus; graphs on surfaces |
Popis | We show that every triangle-free graph on the double torus is 4-colorable. This settles a problem raised by Gimbel and Thomassen Trans. Amer. Math. Soc., 349 (1997), pp. 4555-4564]. |