Distributed minimum vertex coloring and maximum independent set in chordal graphs
Theoretical Computer Science(2022)
摘要
We give deterministic distributed (1+ϵ)-approximation algorithms for Minimum Vertex Coloring and Maximum Independent Set on chordal graphs in the LOCAL model. Our coloring algorithm runs in O(1ϵlogn) rounds, and our independent set algorithm has a runtime of O(1ϵlog(1ϵ)log⁎n) rounds. For coloring, existing lower bounds imply that the dependencies on 1ϵ and logn are best possible. For independent set, we prove that Ω(1ϵ) rounds are necessary.
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关键词
Distributed algorithms,Maximum independent set,Minimum vertex coloring,Approximation algorithms,Chordal graphs
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