Subgroup of matrices with $\det=1$ is isomorphic to commutator group?
30794
Commutator Group of $GL_2(R)$ is $SL_2(R)$
38687
Isomorphism of a product $C_n \times C_m$ of cyclic groups with the cyclic group $C_{mn}$
23579
If $G$ is isomorphic to $H$, then ${\rm Aut}(G)$ is isomorphic to ${\rm Aut}(H)$
58707
Prove Quotient Group Isomorphism
13606
Prove that $K$ is isomorphic to a subfield of the ring of $n\times n$ matrices over $F$.
114811
Characteristic subgroups and automorphisms
125960
Factor groups of matrices
35801
Traceless matrices and commutators
130792
Commutator of a group
70658
Isomorphism between quotient modules
119935
Commutator subgroup of a simple group - Fraleigh p. 152 15.19(h)
134362
Rotation of group of rigid motions of cube is isomorphic to $S_{4}$
45179
When does the isomorphism $G\simeq \ker(\phi)\times \operatorname{im}(\phi)$? hold?
90506
Finite multiplicative group of matrices with sum of traces equal to zero.
123044
Commutative matrices are multiples of the identity
136083
Show that $\sigma\circ\phi : G_1 \to G_3$ is an isomorphism
40478
If $C$ commutes with certain matrices $A$ and $B$, why is $C$ a scalar multiple of the identity?