Ring of integer of quadratic fields
8087
Algebraic integers of $\mathbb{Q}(\sqrt{m})$ for $m$ a squarefree integer
92517
Easy way to show that $\mathbb{Z}[\sqrt[3]{2}]$ is the ring of integers of $\mathbb{Q}[\sqrt[3]{2}]$
47041
What are the conditions for integers $D_1$ and $D_2$ so that $\mathbb{Q}[\sqrt {D_1}] \simeq \mathbb{Q}[\sqrt {D_2}]$ as fields.
24168
A characterisation of quadratic extensions contained in cyclic extensions of degree 4
62183
Find the quotient field of $\mathbb{Z}[\sqrt {2}]$
150170
Subrings of fraction fields
92822
Finite number of elements generating the unit ideal of a commutative ring
114295
Find all the middle fields of the splitting field of $x^4-2$ over $\mathbb{Q}$
146617
A complete picture of the lattice of subfields for a cyclotomic extension over $\mathbb{Q}$.
112099
Polynomial ring with integral coefficients is integral
19473
Why is quadratic integer ring defined in that way?
24203
Finding Zero Divisors and Units of Rings $\mathbb{Z}_n \times \mathbb{Z}_m$
117005
Rules in the ring with coefficients in finite field $\mathbb{F}_p$
137858
Showing that $\mathbb{Z}[i]/I$ is a finite field whenever $I$ is a prime ideal, and also finding its cardinality?
23048
The ring $\mathbb Z[\sqrt{-2}]= \{a+b\sqrt{-2} ; a\in \mathbb Z,b\in \mathbb Z \}$ has a Euclidean algorithm
102721
Number of elements in the ring $\mathbb Z [i]/\langle 2+2i\rangle$
21840
Zero divisors and units for the ring $\mathbb{Z}/n\mathbb{Z}$ with integer $n$