On the Chromatic Number in the Stochastic Block Model

Mikhail Isaev, Mihyun Kang

Research output: Contribution to journalArticlepeer-review

Abstract

We prove a generalisation of Bollobás’ classical result on the asymptotics of the chromatic number of the binomial random graph to the stochastic block model. In addition, by allowing the number of blocks to grow, we determine the chromatic number in the Chung-Lu model. Our approach is based on the estimates for the weighted independence number, where weights are specifically designed to encapsu-late inhomogeneities of the random graph.

Original languageEnglish
Article numberP2.56
JournalElectronic Journal of Combinatorics
Volume30
Issue number2
DOIs
Publication statusPublished - 2023

ASJC Scopus subject areas

  • Discrete Mathematics and Combinatorics
  • Theoretical Computer Science
  • Geometry and Topology
  • Computational Theory and Mathematics
  • Applied Mathematics

Fields of Expertise

  • Information, Communication & Computing

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