Find all units in the ring Z[i] = { a+bi : a,b ϵ Z }
31382
Units of Gaussian integers
86807
The units of $\mathbb Z[\sqrt{2}]$
133738
Can a ring without a unit element have a subring with a unit element?
39231
Construct a bijection between $\mathbb{Z}^+\times \mathbb{Z}^+$ and $\mathbb{Z}^+$
89056
Intuitive understanding of ideal $I = (x+1,x^2+1)$ and the quotient $\Bbb Z[x]/I$
61292
How to know which elements are in the Quotient Ring $\mathbb{Z}[x]/\langle x, 2\rangle$?
130104
Show $4x^2+6x+3$ is a unit in $\mathbb{Z}_8[x]$ (inverting unit + nilpotent)
105887
Ring and Subring with different Identities
119360
Find all subrings of $\mathbb{Z}^2$
92583
Prove that $N(\gamma) = 1$ if, and only if, $\gamma$ is a unit in the ring $\mathbb{Z}[\sqrt{n}]$
69012
How to directly prove every element in a ring with exactly three ideals is either a unit or a zero divisor?
123482
How to compute $\mathbb{Z}_n^*$, the unit group of the integers modulo $n$?
119067
Basic Ring Theory Question involving the unit element
116526
Finite ring has only zero divisors and units
92822
Finite number of elements generating the unit ideal of a commutative ring
4353
Unit group of power series ring
24203
Finding Zero Divisors and Units of Rings $\mathbb{Z}_n \times \mathbb{Z}_m$