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Scholars Journal of Engineering and Technology | Volume-3 | Issue-08
Weighted Vertex PI Index for Some Special Graphs
Li Yan, Junsheng Li, Wei Gao
Published: Aug. 22, 2015 | 103 75
DOI: 10.36347/sjet
Pages: 679-682
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Abstract
The Padmakar-Ivan (PI) index is a Wiener-Szeged-like topological index which reflects certain structural features of organic molecules. Each structural feature of such organic molecule can be expressed as a graph. In this paper, we study the weighted vertex PI indices for some special graphs, such as Ir (Fn), Ir(Wn), ~Fn , ~ Wn , Ir( ~Fn ) and Ir( ~ Wn ).