Xiaoguo Tian

collaborators

2 papers

math.CO2018

The unicyclic graphs with the second smallest normalized Laplacian eigenvalue no less than $1 - \frac{6}{3}$

Weige Xi, Ligong Wang, Xiangxiang Liu +2

Let $λ_{2} (G)$ be the second smallest normalized Laplacian eigenvalue of a graph $G$ . In this paper, we determine all unicyclic graphs of order $n \geq 21$ with $λ_{2}(G)\geq 1-\frac…

math.CO2016

On the second smallest and the largest normalized Laplacian eigenvalues of a graph

Xiaoguo Tian, Ligong Wang, Yong Lu

Let $G$ be a simple connected graph with order $n$ . Let $L (G)$ be the normalized Laplacian matrix of $G$ . Let $λ_{k} (G)$ be the $k$ -th smallest normalized Laplacian eigen…

The unicyclic graphs with the second smallest normalized Laplacian eigenvalue no less than 1−36​​

On the second smallest and the largest normalized Laplacian eigenvalues of a graph

The unicyclic graphs with the second smallest normalized Laplacian eigenvalue no less than $1 - \frac{6}{3}$