Extraconnectivity of k-ary n-cube networks

Given a graph G and a non-negative integer g, the g-extraconnectivity of G is the minimum cardinality of a set of vertices in G, if such a set exists, whose deletion disconnects G and leaves every remaining component with more than g vertices. This study shows that the 2-extraconnectivity of a k-ary n-cube Q"n^k for k>=4 and n>=5 is equal to 6n-5.

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