The paths embedding of the arrangement graphs with prescribed vertices in given position

  • Authors:
  • Yuan-Hsiang Teng;Jimmy J. Tan;Chey-Woei Tsay;Lih-Hsing Hsu

  • Affiliations:
  • Department of Computer Science and Information Engineering, Hungkuang University, Taichung City, Taiwan, ROC 433;Department of Computer Science, National Chiao Tung University, Hsinchu City, Taiwan, ROC 300;Department of Computer Science and Information Engineering, Providence University, Taichung City, Taiwan, ROC 433;Department of Computer Science and Information Engineering, Providence University, Taichung City, Taiwan, ROC 433

  • Venue:
  • Journal of Combinatorial Optimization
  • Year:
  • 2012

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Abstract

Let n and k be positive integers with n驴k驴2. The arrangement graph A n,k is recognized as an attractive interconnection networks. Let x, y, and z be three different vertices of A n,k . Let l be any integer with $d_{A_{n,k}}(\mathbf{x},\mathbf{y}) \le l \le \frac{n!}{(n-k)!}-1-d_{A_{n,k}}(\mathbf{y},\mathbf{z})$ . We shall prove the following existance properties of Hamiltonian path: (1) for n驴k驴3 or (n,k)=(3,1), there exists a Hamiltonian path R(x,y,z;l) from x to z such that d R(x,y,z;l)(x,y)=l; (2) for n驴k=2 and n驴5, there exists a Hamiltonian path R(x,y,z;l) except for the case that x, y, and z are adjacent to each other.