Article ID Journal Published Year Pages File Type
419414 Discrete Applied Mathematics 2012 18 Pages PDF
Abstract

The matching preclusion number of an even graph is the minimum number of edges whose deletion results in a graph that has no perfect matchings. For many interconnection networks, the optimal sets are precisely those induced by a single vertex. The conditional matching preclusion number of an even graph was introduced to look for obstruction sets beyond those induced by a single vertex. It is defined to be the minimum number of edges whose deletion results in a graph with no isolated vertices   and no perfect matchings. In this paper we study this problem for the tori by proving matching preclusion and conditional matching preclusion results of the Cartesian products of graphs involving cycles. Our results generalize the one given for kk-ary nn-cube by Wang et al. (2010) [10] as well as provide classification for optimal conditional matching preclusion sets for these graphs.

Related Topics
Physical Sciences and Engineering Computer Science Computational Theory and Mathematics
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