3 papers
math.CO2025
Perron-Frobenius theorem for dual tensors and its applications
Changjiang Bu, Yue Chu, Qingying Zhang +1
The Perron-Frobenius theorem of nonnegative matrices is a classical result on spectral theory of matrices, which has wide applications in many domains. In this paper, we give the P…
cs.SI2025
An -triangle eigenvector centrality of graphs
Zhang Qingying, Sun Lizhu, Bu Changjiang
Centrality represents a fundamental research field in complex network analysis, where centrality measures identify important vertices within networks. Over the years, researchers h…
math.CO2024
The subgraph eigenvector centrality of graphs
Qingying Zhang, Lizhu Sun, Changjiang Bu
Let be a connected graph and let be a connected subgraph of with a given structure. We consider that the centrality of a vertex of is determined by the centrali…