Litao Guo

most citedOn the second largest distance eigenvalue of a graph

1 citations · 1 across the 2 of their papers we have counts for

collaborators

2 papers

math.CO2020

Fractional matching number and spectral radius of nonnegative matrix of graphs

Ruifang Liu, Hong-Jian Lai, Litao Guo +1

A fractional matching of a graph $G$ is a function $f : E (G) \to [0, 1]$ such that for any $v \in V (G)$ , $\sum_{e \in E_{G} (v)} f (e) \leq 1$ where $E_{G} (v) = {e \in E (G) : e$ is incident wit…

math.CO2015★ 1 cited

On the second largest distance eigenvalue of a graph

Ruifang Liu, Jie Xue, Litao Guo

Let $G$ be a simple connected graph of order $n$ and $D (G)$ be the distance matrix of $G .$ Suppose that $λ_{1} (D (G)) \geq λ_{2} (D (G)) \geq \dots \geq λ_{n} (D (G))$ are the distance spect…