Finding all elements in $GL_{2}(F)$ that commute with all other elements in $GL_{2}(F)$
7418
The Center of $\operatorname{GL}(n,k)$
25357
Matrices $B$ that commute with every matrix commuting with $A$
24126
When functions commute under composition
87136
All matrices which commute with all $2\times 2$ matrices
129750
Order of $SL_2(\mathbb{Z}/ n\mathbb{Z})$
14895
Reference for the subgroup structure of $\rm{PSL}_2(q)$
36142
What is $\mathbb Z \oplus \mathbb Z / \langle (2,2) \rangle$ isomorphic to?
57434
$SL_2(\mathbb Z_3)/Z(SL_2(\mathbb Z_3)) \cong A_4$
146028
$GL(n, \mathbb{C})$ is isomorphic to a subgroup of $GL(2n, \mathbb{R})$
89659
$H_1 ,H_2 \unlhd \, G$ with $H_1 \cap H_2 = \{1_G\} $. Prove every two elements in $H_1, H_2$ commute
138297
Let $G = GL_2\mathbb (R)$. Show that $T$ is a subgroup of $G$
118310
How to find $\operatorname{Gal}(S/\mathbb{Q})$
128896
The special linear group $\text{SL}_n(\mathbb{R})$ is its own commutator
138410
Centralizer of $\mathbb{C}[G]$ in $\mathbb{C}[H]$
88221
Find the center of the group $\operatorname{GL}(n,\mathbb R)$ of invertible $n \times n$ matrices.
85175
Continuous Images of $GL_n(\mathbb{R})$
15387
Order of $GL(n, \mathbb Z_p)$