Three-coloring triangle-free graphs on surfaces II. 4-critical graphs in a disk

Zdenek Dvorák, Daniel Král', Robin Thomas 0001. Three-coloring triangle-free graphs on surfaces II. 4-critical graphs in a disk. Journal of Combinatorial Theory, Series A, 132:1-46, 2018. [doi]

Authors

Zdenek Dvorák

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Daniel Král'

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Robin Thomas 0001

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