Source: wikibot/diagonal-subgroup
= Diagonal subgroup
{wiki=Diagonal_subgroup}
In the context of group theory, particularly in the study of algebraic groups and Lie groups, a diagonal subgroup is typically a subgroup that is constructed from the diagonal elements of a product of groups. For example, consider the direct product of two groups \\( G_1 \\) and \\( G_2 \\).