Paired many-to-many disjoint path covers in faulty hypercubes

  • Authors:
  • Shinhaeng Jo;Jung-Heum Park;Kyung-Yong Chwa

  • Affiliations:
  • Department of Computer Science, KAIST, Daejeon 305-701, Republic of Korea;School of Computer Science and Information Engineering, The Catholic University of Korea, Bucheon 420-743, Republic of Korea;Department of Computer Science, KAIST, Daejeon 305-701, Republic of Korea

  • Venue:
  • Theoretical Computer Science
  • Year:
  • 2013

Quantified Score

Hi-index 5.23

Visualization

Abstract

A paired many-to-many k-disjoint path cover (k-DPC for short) of a graph is a set of k disjoint paths joining k distinct source-sink pairs that cover all the vertices of the graph. Extending the notion of DPC, we define a paired many-to-many bipartite k-DPC of a bipartite graph G to be a set of k disjoint paths joining k distinct source-sink pairs that altogether cover the same number of vertices as the maximum number of vertices covered when the source-sink pairs are given in the complete bipartite, spanning supergraph of G. We show that every m-dimensional hypercube, Q"m, under the condition that f or less faulty elements (vertices and/or edges) are removed, has a paired many-to-many bipartite k-DPC joining any k distinct source-sink pairs for any f and k=1 subject to f+2k=