Showing ${\rm Aut}(V) \cong S_3$
121034
Follow-up to question: Aut(G) for G = Klein 4-group is isomorphic to $S_3$
77969
Question about proof for $S_4 \cong V_4 \rtimes S_3$
18182
An abelian group $G$ with ${\rm Aut}(G)$ non-abelian
4648
Proving that $\mathbb{Z}_m\oplus \mathbb{Z}_n \cong \mathbb{Z}_d\oplus \mathbb{Z}_l $ as groups, where $l=\mathrm{lcm}(m,n)$ and $d=\gcd(m,n)$
117688
Prove that $\def\Aut{\operatorname{Aut}}\Aut(\mathbf{Z_{n}})\simeq \mathbf{Z_{n}^{*}}$
111348
Show that $\mathrm{S}_{m} \times \mathbb{N}^{m} \rightarrow \mathbb{N}^{m}$ defines an action of $\mathrm{S}_{m}$ on $\mathbb{N}^{m}$
58135
Quotient group $SL(2,\mathbb{R})/SO(2,\mathbb{R})$
83747
$2$ out of $3$ property of the unitary group
132653
How to show that $\mathfrak{sl}_n(\mathbb{R})$ and $\mathfrak{sl}_n(\mathbb{C})$ are simple?
128096
Let V denote the Klein 4-group. Show that $\text{Aut} (V)$ is isomorphic to $S_3$
57434
$SL_2(\mathbb Z_3)/Z(SL_2(\mathbb Z_3)) \cong A_4$
86224
The root system of $sl(3,\mathbb C)$
101079
Inner automorphisms form a normal subgroup of $\operatorname{Aut}(G)$
135808
Show that there is a positive integer $n$ such that $G \cong \ker(\phi^{n}) \times \phi^{n}(G)$
75988
Explicit isomorphism $S_4/V_4$ and $S_3$
139595
Show that $(l_1)^* \cong l_{\infty}$
7890
Prove the map $\Phi:G\to\operatorname{Aut}G$ with $g\mapsto (x\mapsto g^{-1}xg)$ is an homomorphism.