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Distributed Approximations of f-Matchings and b-Matchings in Graphs of Sub-Logarithmic Expansion

Authors Andrzej Czygrinow, Michał Hanćkowiak , Marcin Witkowski



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Author Details

Andrzej Czygrinow
  • School of Mathematical and Statistical Sciences, Arizona State University, Tempe, AZ, USA
Michał Hanćkowiak
  • Faculty of Mathematics and Computer Science, Adam Mickiewicz University, Poznań, Poland
Marcin Witkowski
  • Faculty of Mathematics and Computer Science, Adam Mickiewicz University, Poznań, Poland

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Andrzej Czygrinow, Michał Hanćkowiak, and Marcin Witkowski. Distributed Approximations of f-Matchings and b-Matchings in Graphs of Sub-Logarithmic Expansion. In 32nd International Symposium on Algorithms and Computation (ISAAC 2021). Leibniz International Proceedings in Informatics (LIPIcs), Volume 212, pp. 59:1-59:13, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2021)
https://doi.org/10.4230/LIPIcs.ISAAC.2021.59

Abstract

We give a distributed algorithm which given ε > 0 finds a (1-ε)-factor approximation of a maximum f-matching in graphs G = (V,E) of sub-logarithmic expansion. Using a similar approach we also give a distributed approximation of a maximum b-matching in the same class of graphs provided the function b: V → ℤ^+ is L-Lipschitz for some constant L. Both algorithms run in O(log^* n) rounds in the LOCAL model, which is optimal.

Subject Classification

ACM Subject Classification
  • Theory of computation → Distributed computing models
Keywords
  • Distributed algorithms
  • f-matching
  • b-matching

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References

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