On the Extremal Wiener Polarity Index of Chemical Trees 1
On the Extremal Wiener Polarity Index of Chemical Trees 1
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发表时间:
2011
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通讯作者:
H. Deng
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作者:
H. Deng
The Wiener polarity index WP (G) of a graph G =( V, E) is the number of unordered pairs of vertices {u, v} of G such that the distance dG(u, v) between u and v is 3. In this paper, the extremal Wiener polarity indices of all chemical trees on n vertices are given.