Source: wikibot/peripheral-subgroup
= Peripheral subgroup
{wiki=Peripheral_subgroup}
In group theory, a branch of abstract algebra, a **peripheral subgroup** is a specific type of subgroup that has particular significance in the study of group actions and the structure of groups. A subgroup \\( H \\) of a group \\( G \\) is called a *peripheral subgroup* if it meets certain criteria within the context of a relatively small subgroup of \\( G \\) that is critical to the structure of \\( G \\).