3 papers
math.CO2024
On the Spread of Graph-Related Matrices
Lele Liu, Yi-Zheng Fan, Yi Wang +1
The spread of a real symmetric matrix is defined as the difference between its largest and smallest eigenvalue. The study of graph-related matrices has attracted considerable atten…
math.CO2024
Spectral Methods for Matrix Product Factorization
Saieed Akbari, Yi-Zheng Fan, Fu-Tao Hu +2
A graph is factored into graphs and via a matrix product if there exist adjacency matrices , , and of , , and , respectively, such that . In…
math.CO2024
The largest Laplacian eigenvalue and the balancedness of simplicial complexes
Yi-Zheng Fan, Hui-Feng Wu, Yi Wang
Let be a simplical complex, and let be the -th up Laplacian and signless Laplacian of , respectively. In this paper we prov…