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arXiv · 1602.04351

Multiplicative Zagreb indices of k-trees

Shaohui Wang·Bing Wei
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Abstract

Let G be a graph with vertex set V (G) and edge set E(G). The first generalized multiplicative Zagreb index of G is M_1(G) and the second multiplicative Zagreb index is M_2(G). The multiplicative Zagreb indices have been the focus of considerable research in computational chemistry dating back to Narumi and Katayama in 1980s. In this paper, we generalize Narumi-Katayama index and the first multiplicative index, where c = 1, 2, respectively, and extend the results of Gutman to the generalized tree, the k-tree, where the results of Gutman are for k = 1. Additionally, we characterize the extremal graphs and determine the exact bounds of these indices of k-trees, which attain the lower and upper bounds.

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Shaohui Wang, Bing Wei. 2016-02-13. Multiplicative Zagreb indices of k-trees. https://arxiv.org/abs/1602.04351

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