Fu-Tao Hu

collaborators

2 papers

math.CO2026

From the Square-Energy Conjecture to Signed Graphs: Sharp Bounds for Positive Square Energy

Fu-Tao Hu, Xiao Han

Let $Σ = (G, σ)$ be a connected signed graph of order $n$ and size $m$ , and let $s^{+} (Σ)$ and $s^{-} (Σ)$ denote the sums of the squares of its positive and negative adjacency eigenva…

math.CO2024

Spectral Methods for Matrix Product Factorization

Saieed Akbari, Yi-Zheng Fan, Fu-Tao Hu +2

A graph $G$ is factored into graphs $H$ and $K$ via a matrix product if there exist adjacency matrices $A$ , $B$ , and $C$ of $G$ , $H$ , and $K$ , respectively, such that $A = B C$ . In…