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Flexibility of planar graphs of girth at least six
Authors:Zdeněk Dvořák  Tomáš Masařík  Jan Musílek  Ondřej Pangrác
Affiliation:1. Computer Science Institute (CSI), Charles University in Prague, Prague, Czech Republic;2. Department of Applied Mathematics, Charles University in Prague, Prague, Czech Republic
Abstract:Let G be a planar graph with a list assignment L. Suppose a preferred color is given for some of the vertices. We prove that if G has girth at least six and all lists have size at least three, then there exists an L-coloring respecting at least a constant fraction of the preferences.
Keywords:coloring  flexibility  girth six  planar graph
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