Distributed coloring of graphs with an optimal number of colors

  title={Distributed coloring of graphs with an optimal number of colors},
  author={{\'E}tienne Bamas and Louis Esperet},
This paper studies sufficient conditions to obtain efficient distributed algorithms coloring graphs optimally (i.e.\ with the minimum number of colors) in the LOCAL model of computation. Most of the work on distributed vertex coloring so far has focused on coloring graphs of maximum degree $\Delta$ with at most $\Delta+1$ colors (or $\Delta$ colors when some simple obstructions are forbidden). When $\Delta$ is sufficiently large and $c\ge \Delta-k_\Delta+1$, for some integer $k_\Delta\approx… 

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