Lihua Feng

activity

20112023

most citedA spectral extremal problem on non-bipartite triangle-free graphs

12 citations · 39 across the 19 of their papers we have counts for

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Showing 2011Show all

2 papers · 1 filter

math.CO2011

The largest $n - 1$ Hosoya indices of unicyclic graphs

Guihai Yu, Lihua Feng, Aleksandar Ilic

The Hosoya index $Z (G)$ of a graph $G$ is defined as the total number of edge independent sets of $G$ . In this paper, we extend the research of [J. Ou, On extremal unicyclic molec…

math.CO2011

The Harary index of trees

Aleksandar Ili\' c, Guihai Yu, Lihua Feng

The Harary index of a graph $G$ is recently introduced topological index, defined on the reverse distance matrix as $H (G) = \sum_{u, v \in V (G)} \frac{1}{d ( u , v )}$ , where $d (u, v)$ is th…

The largest n−1 Hosoya indices of unicyclic graphs

The Harary index of trees

The largest $n - 1$ Hosoya indices of unicyclic graphs