Panconnectivity and edge-pancyclicity of k-ary n-cubes with faulty elements

  • Authors:
  • Shangwei Lin;Shiying Wang;Chunfang Li

  • Affiliations:
  • School of Mathematical Sciences, Shanxi University, Taiyuan, Shanxi, 030006, People's Republic of China;School of Mathematical Sciences, Shanxi University, Taiyuan, Shanxi, 030006, People's Republic of China;Department of Mathematics, Jinzhong University, Jinzhong, Shanxi, 030600, People's Republic of China

  • Venue:
  • Discrete Applied Mathematics
  • Year:
  • 2011

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Abstract

The class of k-ary n-cubes represents the most commonly used interconnection topology for parallel and distributed computing systems. In this paper, we investigate the fault-tolerant capabilities of the k-ary n-cubes for odd integer k with respect to the panconnectivity and pancyclicity. By studying first the fault panconnectivity of two-dimensional torus networks and then using an induction argument, we prove that in a k-ary n-cube Q"n^k with odd k=3, every pair of healthy vertices of Q"n^k are connected by fault-free paths of lengths from n(k-1)-1 to |V(Q"n^k-F)|-1 and every healthy edge is contained in fault-free cycles of lengths from n(k-1) to |V(Q"n^k-F)| for any set F of faulty elements (vertices and/or edges) with |F|@?2n-3. Finally, examples show that our results are best possible in some sense.