On the Hulls of Group Codes

Xiheng Deng, Yuan Ren

Let ${\mathbb{F}}_q$ be a finite field and $G$ a finte group with $(|G|,q)=1$. By a group code in ${\mathbb{F}}_q[G]$ we mean a two-sided ideal in ${\mathbb{F}}_q[G]$. We will prove a…