A note on hitting maximum and maximal cliques with a stable set

نویسندگان

  • Demetres Christofides
  • Katherine Edwards
  • Andrew D. King
چکیده

It was recently proved that any graph satisfying ω > 2 3(∆ + 1) contains a stable set hitting every maximum clique. In this note we prove that the same is true for graphs satisfying ω ≥ 23(∆ + 1) unless the graph is the strong product of an odd hole and Kω/2. We also provide a counterexample to a recent conjecture on the existence of a stable set hitting every sufficiently large maximal clique.

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عنوان ژورنال:
  • Journal of Graph Theory

دوره 73  شماره 

صفحات  -

تاریخ انتشار 2013