Fractional chromatic numbers of cones over graphs

Dan Archdeacon, Joan Hutchinson, Atsuhiro Nakamoto, Seiya Negam, Katsuhiro Ota

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


We introduce a construction called the cone over a graph. It is a natural generalisation of Mycielski's construction. We give a formula for the fractional chromatic numbers of all cones over graphs, which generalizes that given in [3] for Mycielski's construction.

Original languageEnglish
Pages (from-to)87-94
Number of pages8
JournalJournal of Graph Theory
Issue number2
Publication statusPublished - 2001 Oct


  • Fractional chromatic number
  • Mycielski's construction

ASJC Scopus subject areas

  • Geometry and Topology
  • Discrete Mathematics and Combinatorics


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