Dein Wong

collaborators

2 papers

math.GR2025

Finite groups admitting a regular tournament $m$ -semiregular representation

Dein Wong, Songnian Xu, Chi Zhang +1

For a positive integer $m$ , a finite group $G$ is said to admit a tournament $m$ -semiregular representation (TmSR for short) if there exists a tournament $Γ$ such that the automorp…

math.SP2023

Minimal graphs with eigenvalue multiplicity of $n - d$

Yuanshuai Zhang, Dein Wong, Wenhao Zhen

For a connected graph $G$ with order $n$ , let $e (G)$ be the number of its distinct eigenvalues and $d$ be the diameter. We denote by $m_{G} (μ)$ the eigenvalue multiplicity of $μ$ in…

Finite groups admitting a regular tournament m-semiregular representation

Minimal graphs with eigenvalue multiplicity of n−d

Finite groups admitting a regular tournament $m$ -semiregular representation

Minimal graphs with eigenvalue multiplicity of $n - d$