The unitary subgroups of group algebras of a class of finite $2$-groups with derived subgroup of order $2$

Yulei Wang, Heguo Liu

Let $p$ be a prime and $F$ be a finite field of characteristic $p$. Suppose that $FG$ is the group algebra of the finite $p$-group $G$ over the field $F$. Let $V(FG)$ denote the gr…