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SIAMDM
2008
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SIAMDM 2008
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Coloring of Triangle-Free Graphs on the Double Torus
13 years 11 months ago
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kam.mff.cuni.cz
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), 4555
Daniel Král, Matej Stehlík
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