A Note on Connectivity and Lambda-modified Wiener index

Document Type : Research Paper


1 Yunnan normal university

2 yunnan normal university


In theoretical chemistry, -modified Wiener index is a graph invariant topological index to analyze the chemical properties of molecular structure. In this note, we determine the minimum -modified Wiener index of graph with fixed connectivity or edge-connectivity. Our results also present the sufficient and necessary condition for reaching the lower bound.


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