c/Functional subgroups

Information
lexicalization	eng: Functional subgroups
subclass of	(noun) a distinct and often subordinate group within a group subgroup
has instance	e/Center (group)
has instance	e/Commutator subgroup
has instance	e/Fitting subgroup
has instance	e/Frattini subgroup
has instance	e/Generalized Fitting subgroup
has instance	e/Hirsch–Plotkin radical
has instance	e/Norm (group)
has instance	e/Perfect core
has instance	e/Socle (mathematics)