Units of $\mathbb Z[\sqrt 3]$
35691
$\mathbb Z[\sqrt 3]$ contains infinitely many units
47709
If $n\mid m$ prove that the canonical surjection $\pi: \mathbb Z_m \rightarrow \mathbb Z_n$ is also surjective on units
92517
Easy way to show that $\mathbb{Z}[\sqrt[3]{2}]$ is the ring of integers of $\mathbb{Q}[\sqrt[3]{2}]$
138501
Is $\mathbf{Q}(\sqrt{2},\sqrt{3}) = \mathbf{Q}(\sqrt{6})$?
87682
Show that $\sqrt{2}\notin \mathbb{Q}(\sqrt[4]{3})$
138944
Is $\mathbb Z[\sqrt{-3}]$ Euclidean under some other norm?
148550
Units in quotient ring of $\mathbb Z[X]$
120183
Prove that $S_3\times\mathbb{Z}_2$ is isomorphic to $D_6$
130826
Computing class group of $\mathbb Q(\sqrt{6})$
122312
How can I compute $\mathrm{Aut}(\mathbb{Z}/4\mathbb{Z}\times\mathbb{Z}/6\mathbb{Z})$?
103763
Minimal polynomial of $\sqrt{2}+\sqrt{3}$ over $\mathbb Q$
75639
Showing that $\sqrt[3]{2}\notin\Bbb Q(\alpha_1,...,\alpha_k)$ where $\alpha_i^2\in\Bbb Q\ \forall i$
20613
Units (invertibles) of polynomial rings over a field
92583
Prove that $N(\gamma) = 1$ if, and only if, $\gamma$ is a unit in the ring $\mathbb{Z}[\sqrt{n}]$
24203
Finding Zero Divisors and Units of Rings $\mathbb{Z}_n \times \mathbb{Z}_m$
115282
Showing that $\mathbb Q(\sqrt{17})$ has class number 1
93773
How many elements are in the quotient ring $\frac{\mathbb Z_3[x]}{\langle 2x^3+ x+1\rangle} $