Hao Yu

activity

20232025

collaborators

4 papers

math.FA2025

Proof of admissible weights

Hao Yu

Admissable weight is an important tool for studying spectral invariance in operator algebra. Common admissable weights include polynomial weights and sub exponential weights. This…

math.CO2024

The product of nonabelian simple groups and dihedral groups

Hao Yu

Let $X = G D$ be a group, where $G$ is a nonabelian simple group and $D$ is a dihedral group. These groups $X$ are closely related to regular Cayley maps. The main theorems of this pa…

math.GR2023

The Product of a Semi Dihedral Group And a Cyclic Group

Hao Yu

Let $X (G) = GC$ be a group, where $G$ is a semi dihedral group and $C$ is a cyclic group such that $G \cap C = 1$ . In this paper, $X (G)$ will be characterized.

math.GR2023

On Schur Rings Over a Semi Dihedral Group

Hao Yu

In this paper, we shall show that the only primitive Schur ring over a semi dihedral group is the trivial one and every semi dihedral subgroup is Burnside group, that is a primitiv…