Minimum neighborhood in a generalized cube

  • Authors:
  • Xiaofan Yang;Jianqiu Cao;Graham M. Megson;Jun Luo

  • Affiliations:
  • School of Computer and Information, Chongqing Jiaotong University, Chongqing 400074, P.R. China and College of Computer Science, Chongqing University, Chongqing 400044, P.R. China;School of Computer and Information, Chongqing Jiaotong University, Chongqing 400074, P.R. China;Department of Computer Science, School of Systems Engineering, University of Reading, P.O. Box 225, Whiteknights, Reading, Berkshire RG6 6AY, UK;College of Computer Science, Chongqing University, Chongqing 400044, P.R. China

  • Venue:
  • Information Processing Letters
  • Year:
  • 2006

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Abstract

Generalized cubes are a subclass of hypercube-like networks, which include some hypercube variants as special cases. Let @q"G(k) denote the minimum number of nodes adjacent to a set of k vertices of a graph G. In this paper, we prove @q"G(k)=-12k^2+(2n-32)k-(n^2-2) for each n-dimensional generalized cube and each integer k satisfying n+2=