Finding $U(\mathbb{Z}[i])$.
5526
Prove that $ℤ[i]^*= \{1,-1,i,-i\}$
1020
Proving that $\mathbb{Z}[\sqrt{2}]$ is a Euclidean domain
78118
Algebraically, why is $\mathbb{Z}[i]/(i + 1)$ isomorphic to $\mathbb{Z}_{2}$?
133775
Is $\mathbb{Z}[\sqrt{-7}]$ a UFD or not?
75970
$\mathbb Z[1/2]$ is not finitely generated?
118299
Show that $(\mathbb{Z}[x]/(x^{n+1}))^{\times}\cong \mathbb{Z}/2\mathbb{Z}\times\Pi_{i=1}^n\mathbb{Z}$
35691
$\mathbb Z[\sqrt 3]$ contains infinitely many units
154837
mapping properties of $(1−z)^i$
120594
$\mathbb Z[i]/ \langle 1+2i \rangle \cong \mathbb Z_5$
122312
How can I compute $\mathrm{Aut}(\mathbb{Z}/4\mathbb{Z}\times\mathbb{Z}/6\mathbb{Z})$?
93621
Prove that $\mathbb{Z}[\omega]$ is an integral domain
144789
identify the ring $\mathbb{Z}[x]/(2x-1)$
9223
Finding $\iiint_K (x^2 -z^2)\, dx\, dy \,dz$
41035
Mapping that proves $\mathbb{Z} \subset \mathbb{Q}$
39492
Finding $z\in \mathbb C$ with $\sin z = 2$?
92583
Prove that $N(\gamma) = 1$ if, and only if, $\gamma$ is a unit in the ring $\mathbb{Z}[\sqrt{n}]$
102721
Number of elements in the ring $\mathbb Z [i]/\langle 2+2i\rangle$