Extremal Graphs for the second multiplicative Zagreb Index

Ali Ghalavand, Ali Reza Ashra, Ivan Gutman

Апстракт


Let G be a graph with edge set E(G). The second multiplicative
Zagreb index of G is dened as 2(G) = Πuv2E(G)[degG(u) degG(v)], where degG(v) is the degree of the vertex v of G. In this paper, the unicyclic graphs with rst through seventh smallest 2

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