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- University of MichiganUS67 papers
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Showing 2008 · math.COShow all
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math.CO2008★ 1 cited
Coloring plane graphs with independent crossings
Daniel Král', Ladislav Stacho
We show that every plane graph with maximum face size four whose all faces of size four are vertex-disjoint is cyclically 5-colorable. This answers a question of Albertson whether…
math.CO2008
Degenerate and star colorings of graphs on surfaces
Bojan Mohar, Simon Spacapan
We study the degenerate, the star and the degenerate star chromatic numbers and their relation to the genus of graphs. As a tool we prove the following strengthening of a result of…