Near-optimal distributed edge coloring

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Abstract

We give a distributed randomized algorithm to edge color a network. Given a graph G with n nodes and maximum degree A, the algorithm,- For any fixed λ > 0, colours G with (1+λ)Δ colours in time O(log n).- For any fixed positive integer s, colours G with Δ +Δ/(log Δ)s =(1+o(1))Δ colours in time O(log n + logs Δ log log Δ).Both results hold with probability arbitrarily close to 1 as long as Δ(G) =Ω(logl+d n), for some d > 0. The algorithm is based on the RSdl Nibble, a probabilistic strategy introduced by Vojtech Rödl. The analysis involves a certain quasi-random phenomenon involving sets at the vertices of the graph.

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Dubhashi, D., & Panconesi, A. (1995). Near-optimal distributed edge coloring. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 979, pp. 448–459). Springer Verlag. https://doi.org/10.1007/3-540-60313-1_162

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