Fault Hamiltonicity and Fault Hamiltonian Connectivity of the Arrangement Graphs

  • Authors:
  • Hong-Chun Hsu;Tseng-Kuei Li;Jimmy J. M. Tan;Lih-Hsing Hsu

  • Affiliations:
  • -;-;-;-

  • Venue:
  • IEEE Transactions on Computers
  • Year:
  • 2004

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Abstract

Abstract--The arrangement graph An,k is a generalization of the star graph. There are some results concerning fault Hamiltonicity and fault Hamiltonian connectivity of the arrangement graph. However, these results are restricted in some particular cases and, thus, are less completed. In this paper, we improve these results and obtain a stronger and simpler statement. Let n-k \ge 2 and F \subseteq V(An,k) \cup E(An,k). We prove that An,k - F is Hamiltonian if |F| \le k(n-k) -2 and An,k - F is Hamiltonian connected if |F| \le k(n-k) -3. These results are optimal.