The Maximum Independent Set Problem in Planar Graphs

  • Authors:
  • Vladimir E. Alekseev;Vadim Lozin;Dmitriy Malyshev;Martin Milanič

  • Affiliations:
  • Department of Computational Mathematics, Nizhny Novgorod University, Russia;DIMAP and Mathematics Institute, University of Warwick, Coventry, UK;Department of Computational Mathematics, Nizhny Novgorod University, Russia;AG Genominformatik, Faculty of Technology, Bielefeld University, Germany

  • Venue:
  • MFCS '08 Proceedings of the 33rd international symposium on Mathematical Foundations of Computer Science
  • Year:
  • 2008

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Abstract

We study the computational complexity of finding a maximum independent set of vertices in a planar graph. In general, this problem is known to be NP-hard. However, under certain restrictions it becomes polynomial-time solvable. We identify a graph parameter to which the complexity of the problem is sensible and produce a number of both negative (intractable) and positive (solvable in polynomial time) results, generalizing several known facts.