Qiang Chen

collaborators

2 papers

math.RA2023

On Panja-Prasad conjecture

Qian Chen

In the present paper we shall investigate the Waring's problem for upper triangular matrix algebras. The main result is the following: Let $n \geq 2$ and $m \geq 1$ be integers. Let…

math.CO2023

The multiplicity of a Hermitian eigenvalue on graphs

Qian-Qian Chen, Ji-Ming Guo, Zhiwen Wang

For a graph $G$ , let $S (G)$ be the set consisting of Hermitian matrices whose graph is $G$ . Denoted by $m_{B} (G, λ)$ the multiplicity of an eigenvalue $λ$ of $B(G)\in \mathc…