Category of profinite groups
33767
Category of profinite groups
128544
What are the subcategories of ordered sets / groups?
27670
Group homomorphisms $\mathbb{Q}\to\mathbb{R}$
114811
Characteristic subgroups and automorphisms
112906
Categories of mathematics
39938
Subgroups of a cyclic group and their order.
115014
Classification of automorphisms of projective space
33294
The correspondence theorem for groups
68955
Characterising subgroups of Prüfer $p$-groups.
33152
Classifying groups of order 18
18181
Complete classification of the groups for which converse of Lagrange's Theorem holds
106347
Why is the image of a homomorphism a subgroup of the codomain?
112165
Classification of groups of order 12
17978
Isomorphism classes of $\mathbb{Z}[i]$ modules.
129830
A group with no proper non-trivial subgroups
83109
Formation of the free group on $S$ is a functor
6904
questions about extremal epimorphisms in category theory