The condensation phase transition in random graph coloring

Victor Bapst, Amin Coja-Oghlan, Samuel Hetterich, Felicia Raßmann, Dan Vilenchik

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

Based on a non-rigorous formalism called the "cavity method", physicists have made intriguing predictions on phase transitions in discrete structures. One of the most remarkable ones is that in problems such as random κ-SAT or random graph κ-coloring, very shortly before the threshold for the existence of solutions there occurs another phase transition called condensation [Krzakala et al., PNAS 2007]. The existence of this phase transition seems to be intimately related to the difficulty of proving precise results on, e. g., the κ-colorability threshold as well as to the performance of message passing algorithms. In random graph κ-coloring, there is a precise conjecture as to the location of the condensation phase transition in terms of a distributional fixed point problem. In this paper we prove this conjecture, provided that κ exceeds a certain constant κ0.

Original languageEnglish
Title of host publicationLeibniz International Proceedings in Informatics, LIPIcs
EditorsKlaus Jansen, Jose D. P. Rolim, Nikhil R. Devanur, Cristopher Moore
PublisherSchloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing
Pages449-464
Number of pages16
ISBN (Electronic)9783939897743
DOIs
StatePublished - 1 Sep 2014
Externally publishedYes
Event17th International Workshop on Approximation Algorithms for Combinatorial Optimization Problems, APPROX 2014 and the 18th International Workshop on Randomization and Computation, RANDOM 2014 - Barcelona, Spain
Duration: 4 Sep 20146 Sep 2014

Publication series

NameLeibniz International Proceedings in Informatics, LIPIcs
Volume28
ISSN (Print)1868-8969

Conference

Conference17th International Workshop on Approximation Algorithms for Combinatorial Optimization Problems, APPROX 2014 and the 18th International Workshop on Randomization and Computation, RANDOM 2014
Country/TerritorySpain
CityBarcelona
Period4/09/146/09/14

Keywords

  • Graph coloring
  • Message-passing algorithm
  • Phase transitions
  • Random graphs

ASJC Scopus subject areas

  • Software

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