Pancyclicity of Restricted Hypercube-Like Networks under the Conditional Fault Model

  • Authors:
  • Sun-Yuan Hsieh;Chia-Wei Lee

  • Affiliations:
  • hsiehsy@mail.ncku.edu.tw;cwlee@csie.ncku.edu.tw

  • Venue:
  • SIAM Journal on Discrete Mathematics
  • Year:
  • 2010

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Abstract

A graph $G$ is said to be conditional $k$-edge-fault pancyclic if after removing $k$ faulty edges from $G$, under the assumption that each node is incident to at least two fault-free edges, the resulting graph contains a cycle of every length from its girth to $|V(G)|$. In this paper, we consider the common properties of a wide class of interconnection networks, called restricted hypercube-like networks, from which their conditional edge-fault pancyclicity can be determined. We then apply our technical theorems to show that several multiprocessor systems, including $n$-dimensional locally twisted cubes, $n$-dimensional generalized twisted cubes, recursive circulants $G(2^{n},4)$ for odd $n$, $n$-dimensional crossed cubes, and $n$-dimensional twisted cubes for odd $n$, are all conditional $(2n-5)$-edge-fault pancyclic.