# Semantic search

2-subnormal subgroup, Center-fixing automorphism-invariant subgroup, Characteristic subgroup, Characteristic subgroup of group of prime power order, Cofactorial automorphism-invariant subgroup, Completely divisibility-closed subgroup, Descendant subgroup, Finite direct power-closed characteristic subgroup, Fully invariant subgroup, Injective endomorphism-invariant subgroup, Left-transitively 2-subnormal subgroup, Local powering-invariant subgroup, Marginal subgroup, Normal subgroup, Normal-extensible automorphism-invariant subgroup, Powering-invariant subgroup, Strictly characteristic subgroup, Transfer-closed characteristic subgroup, Transfer-closed fully invariant subgroup, Weakly marginal subgroup