Center of GL(2,F) and SL(2,F)
87136
All matrices which commute with all $2\times 2$ matrices
92033
Prove that $g$ is a submanifold: $g (t,u,v) = (t^2,u^2,v^2,\sqrt{2}uv, \sqrt{2}tv,\sqrt{2}tu)$
118898
Is there a simple way of proving that $\text{GL}_n(R) \not\cong \text{GL}_m(R)$?
28934
Presentation of SL$(n,\mathbb{Z}_p)$
72932
Center of Lie group and Lie algebra
30794
Commutator Group of $GL_2(R)$ is $SL_2(R)$
66708
Elementary isomorphism between $\operatorname{PSL}(2,5)$ and $A_5$
67460
Orientation on $\mathbb{CP}^2$
30637
Exponent of $GL(n,q)$.
23037
Computing the order of $\mathrm{SL}_2(\mathbb F_p)$ as the kernel of $\mathrm{GL}_2(\mathbb F_p)$
55493
Showing that the path-connected component of the identity matrix in a subgroup of $GL_n(\Bbb R)$ is a normal subgroup
158975
Isomorphism of centers of isomorphic groups
146028
$GL(n, \mathbb{C})$ is isomorphic to a subgroup of $GL(2n, \mathbb{R})$
27865
What is the number of invertible $n\times n$ matrices in $\operatorname{GL}_n(F)$?
105322
Computing the quotient of SL(2,Z) by its commutator subgroup
78263
Prove $GL_n(\Bbb{R})/SL_n(\Bbb{R}) \cong \Bbb{R}^\times$
8152
Center of Heisenberg group- Dummit and Foote, pg 54, 2.2