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Section A

An upper bound for the crossing number of augmented cubes

, , , &
Pages 183-227 | Received 20 Apr 2012, Accepted 29 Aug 2012, Published online: 04 Oct 2012
 

Abstract

A good drawing of a graph G is a drawing where the edges are non-self-intersecting and each of the two edges have at most one point in common, which is either a common end vertex or a crossing. The crossing number of a graph G is the minimum number of pairwise intersections of edges in a good drawing of G in the plane. The n-dimensional augmented cube AQ n , proposed by S.A. Choudum and V. Sunitha [Augmented cubes, Networks 40 (2002), pp. 71–84], is an important interconnection network with good topological properties and applications. In this paper, we obtain an upper bound on the crossing number of AQ n less than .

2010 AMS Subject Classifications: :

Acknowledgements

The authors are grateful to the referees for their valuable comments and suggestions. This research was supported by NSFC (11001035, 60973014, 60803034) and SRFDP (200801081017).

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