Linear Time Algorithms for Hamiltonian Problems on (Claw, Net)-Free Graphs

  • Authors:
  • Andreas Brandstädt;Feodor F. Dragan;Ekkehard Köhler

  • Affiliations:
  • -;-;-

  • Venue:
  • WG '99 Proceedings of the 25th International Workshop on Graph-Theoretic Concepts in Computer Science
  • Year:
  • 1999

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Abstract

We prove that claw-free graphs, containing an induced dominating path, have a Hamiltonian path, and that two-connected claw-free graphs, containing an induced doubly dominating cycle or a pair of vertices such that there exist two internally disjoint induced dominating paths connecting them, have a Hamiltonian cycle. As a consequence, we obtain linear time algorithms for both problems if the input is restricted to (claw,net)-free graphs. These graphs enjoy those interesting structural properties.