On q-Wiener Index of Cartesian Product, Cluster and Corona of Graphs
نویسندگان
چکیده
In this paper, we are concerned with finite undirected graphs without loops or multiple edges. The distance between two vertices u and v of a graph G, denoted by dG(u, v) or d(u, v) for short, is the length of a shortest (u, v)-path in G. Let d(G) denote the maximum distance over all pairs of vertices of graph G, namely its diameter of G. If denote by d(G, k) the number of pairs of vertices of G that are at distance k, then the Wiener index of graph G can be expressed as follows [3].
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