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The fault-tolerant extension problem for complete multipartite networks

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2 Author(s)
Farrag, A.A. ; Dept. of Math. & Comput. Sci., Dalhousie Univ., Halifax, NS, Canada ; Dawson, R.J.

We develop a characterization for m-fault-tolerant extensions, and for optimal m-fault-tolerant extensions, of a complete multipartite graph. Our formulation shows that this problem is equivalent to an interesting combinatorial problem on the partitioning of integers. This characterization leads to a new procedure for constructing an optimal m-fault-tolerant extension of any complete multipartite graph, for any m⩾0. The proposed procedure is mainly useful when the size of the graph is relatively small, because the search time required is exponential. This exponential search, however, is not always necessary. We prove several necessary conditions that help us, in several cases, to identify some optimal m-fault-tolerant extensions without performing any search

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Parallel and Distributed Systems, IEEE Transactions on  (Volume:5 ,  Issue: 2 )