Changxiang He

activity

20162023

most citedLaplacian spectral characterization of roses

11 citations · 11 across the 8 of their papers we have counts for

collaborators

Showing 2020Show all

2 papers · 1 filter

math.CO2020

A proof of a conjecture on the distance spectral radius and maximum transmission of graphs

Lele Liu, Haiying Shan, Changxiang He

Let $G$ be a simple connected graph, and $D (G)$ be the distance matrix of $G$ . Suppose that $D_{m a x} (G)$ and $λ_{1} (G)$ are the maximum row sum and the spectral radius of $D (G)$ , re…

math.CO2020

On the index of unbalanced signed bicyclic graphs

Changxiang He, Yuying Li, Haiying Shan +1

In this paper, we focus on the index ( largest eigenvalue) of the adjacency matrix of connected signed graphs. We give some general results on the index when the corresponding sign…