Subgroup of abelian group
98542
Prove that $H$ is a subgroup of an abelian group $G$
51359
Prove that every subgroup of an abelian group is a normal subgroup.
25235
Finite abelian groups - direct sum of cyclic subgroup
71035
Non abelian subgroup of a abelian group.
108425
Problem on abelian group
142375
Prove or disprove: If H is a normal subgroup of G such that H and G/H are abelian, then G is abelian.
67919
Subgroup of the unit circle under complex multiplication
13631
Showing group with $p^2$ elements is Abelian
59211
Product of Finite Abelian Group
88344
Order of a group and subsequent subgroups
42891
Prove that $Z(G)$ which is the center of $G$ is a subgroup of $G$
122335
Abelian $p$-group with unique subgroup of index $p$
96878
A finite group with the property that all of its proper subgroups are abelian
65900
Show that a finite group with certain automorphism is abelian
36709
subgroup of direct product of two groups
76943
Existence of subgroup of order six in $A_4$
130993
4 Element abelian subgroup of S5.