"Intermediate notions between [[characteristic subgroup]] and [[abelian characteristic subgroup]]","Intermediate notions between [[characteristic subgroup]] and [[abelian characteristic subgroup]]#"
"Class two characteristic subgroup","Class two characteristic subgroup"
"LCS-characteristic subgroup","LCS-characteristic subgroup"
"Nilpotent characteristic subgroup","Nilpotent characteristic subgroup"
"Solvable characteristic subgroup","Solvable characteristic subgroup"