Abstract

The bondage number b(G) of a nonempty graph G is the smallest number of edges whose removal from G results in a graph with domination number greater than that of G. Denote P n × P m the Cartesian product of two paths P n and P m . This paper determines the exact values of b(P n × P 2), b(P n × P 3), and b(P n × P 4) for n ⩾ 2.

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