Panconnectivity of Cartesian product graphs

  • Authors:
  • You Lu;Jun-Ming Xu

  • Affiliations:
  • Department of Mathematics, University of Science and Technology of China, Hefei, China 230026;Department of Mathematics, University of Science and Technology of China, Hefei, China 230026

  • Venue:
  • The Journal of Supercomputing
  • Year:
  • 2011

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Abstract

A graph G of order n (驴2) is said to be panconnected if for each pair (x,y) of vertices of G there exists an xy-path of length 驴 for each 驴 such that d G (x,y)驴驴驴n驴1, where d G (x,y) denotes the length of a shortest xy-path in G. In this paper, we consider the panconnectivity of Cartesian product graphs. As a consequence of our results, we prove that the n-dimensional generalized hypercube Q n (k 1,k 2,驴,k n ) is panconnected if and only if k i 驴3 (i=1,驴,n), which generalizes a result of Hsieh et al. that the 3-ary n-cube $Q^{3}_{n}$ is panconnected.