Pengli Zhang

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20212026

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math.CO2021

The Q-index and connectivity of graphs

Peng-Li Zhang, Lihua Feng, Weijun Liu +1

A connected graph $G$ is said to be $k$ -connected if it has more than $k$ vertices and remains connected whenever fewer than $k$ vertices are deleted. In this paper, for a connecte…

math.CO2021

Lower bounds for the $A_{α}$ -spectral radius of uniform hypergraphs

Peng-Li Zhang, Xiao-Dong Zhang

For $0 \leq α < 1$ , the $A_{α}$ -spectral radius of a $k$ -uniform hypergraph $G$ is defined to be the spectral radius of the tensor $\mathcal{A}_α(G):=α\mathcal{D}(G)+(1-α) \m…

The Q-index and connectivity of graphs

Lower bounds for the Aα​-spectral radius of uniform hypergraphs

Lower bounds for the $A_{α}$ -spectral radius of uniform hypergraphs