Matrix representation of $\operatorname{Aut}(\mathbb{Z}_2\times\mathbb{Z}_2)\cong\mathbb{S}_3$
109596
Isomorphism from $\mathrm{Aut}(\mathbb{Z}/2\mathbb{Z}\times \mathbb{Z}/2\mathbb{Z})$ to $S_3$
41069
Justifying $\,\Bbb{Z}[i]/\langle 2\rangle\cong \Bbb{Z}[X]/\langle X^2+1,2\rangle\cong \Bbb{F}_2[X]/\langle X^2+1\rangle$
38378
$M= \{ A \in Mat_{2 \times 2}{\mathbb{R}}| \det(A)=1 \}$ is homeomorphic to $S^{1} \times \mathbb{R}^{2}$
127198
What is $\mathbb{C}^{Aut(\mathbb{C}/\mathbb{Q})}$?
118288
Complex structure on $\mathbb S^1 \times \mathbb S^3$
89215
How to describe the quotient group $\mathbb{Z} \times \mathbb{Z} / \langle (1, 2) \rangle$
137285
Prove $\mathbb{Z}_2 \times \mathbb{Z}_2$ is not isomorphic to $\mathbb{Z}_4$
58135
Quotient group $SL(2,\mathbb{R})/SO(2,\mathbb{R})$
155669
$\mathrm{Aut}(D_4)$ is isomorphic to $D_4$
105322
Computing the quotient of SL(2,Z) by its commutator subgroup
27056
$ gl(2,\mathbb C) \cong sl(2,\mathbb C) \oplus \mathbb C $
78263
Prove $GL_n(\Bbb{R})/SL_n(\Bbb{R}) \cong \Bbb{R}^\times$
36797
How do I construct the $SU(2)$ representation of the Lorentz Group using $SU(2)\times SU(2)\sim SO(3,1)$ ?
121449
An isomorphism from $GL_{2}(\mathbb{F_{2}})$ to $S_{3}$
115876
$D_6 \cong D_3\times \mathbb Z_2$
76100
Showing that $\left\langle a,b \mid abab^{-1}\right\rangle \cong \pi_1(K) \cong \left\langle c,d \mid c^2 d^2 \right\rangle$
136804
Computing $\mathrm{Hom}(\mathbb Z_n,\mathbb Z_m)$ as $\mathbb Z$-module