Yuefeng Yang

activity

20232025

collaborators

3 papers

math.CO2025

Perfect codes in quartic Cayley graphs of generalized dihedral groups

Chengcheng Dong, Yuefeng Yang, Changchang Dong

For a graph $Γ = (V Γ, E Γ)$ , a subset $D$ of $V Γ$ is a perfect code in $Γ$ if every vertex of $Γ$ is dominated by exactly one vertex in $D$ . In this paper, we classify all connected qu…

math.CO2024

(Total) Perfect codes in (extended) subgroup sum graphs

Xuanlong Ma, Yuefeng Yang, Liangliang Zhai

Given a finite group $G$ with identity $e$ and a normal subgroup $H$ of $G$ , the subgroup sum graph $Γ_{G, H}$ (resp. extended subgroup sum graph $Γ_{G, H}^{+}$ ) of $G$ with respect to…

math.CO2023

Weakly distance-regular circulants, I

Akihiro Munemasa, Kaishun Wang, Yuefeng Yang +1

We classify certain non-symmetric commutative association schemes. As an application, we determine all the weakly distance-regular circulants of one type of arcs by using Schur rin…