Abstract

Two methods are given that use combinations of nodes to enumerate all minimal cutsets. One simply has to enumerate all combinations of orders 1 to N-3 of nodes from 2 to N-1, where N is the total number of nodes. Collecting only those symbols of links of first row of adjacency matrix and in the rows given in a combination that are not in the columns of the combination, a cutset of an acyclic directed graph having all adjacent nodes is obtained. To obtain the cutsets of a general acyclic directed graph, four rules are given for deletion of those combinations that yield redundant and nonminimal subsets. The rules provide a reduced set of combinations, which then gives rise to minimal cutsets of a general graph. Three examples illustrate the algorithms. >

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