Associated elements in a ring
16023
Are associates unit multiples in a commutative ring with $1$?
138882
A prime poset of ideals
158426
Proving lemma about centrality of idempotent elements in a Ring with no nilpotent elements.
33728
Basis for Center of Group Ring
92822
Finite number of elements generating the unit ideal of a commutative ring
45158
Centre of a matrix ring are $ \operatorname{diag}\{ a, a, ..., a \} $ with $ a\in Z(R) $
15904
Prime ideal and nilpotent elements
41629
Structure of ideals in the product of two rings
108775
Identify the ring $\mathbb {Z}[i]/(2 + i) $
8787
In a ring $(A,+, \cdot)$ if $aba = a$ then $bab = b$ and all non zero elements in $A$ are invertible.
67944
Nilpotent Elements and Intersection of Prime Ideals
7303
How many idempotent elements does the ring ${\bf Z}_n$ contain?
21610
The monoid of fractions associated with the submonoid of cancellable elements of a commutative monoid E
107821
The ring of integers of $\mathbf{Q}[i]$
111104
Ring theory notation question
20877
The set of all nilpotent elements is an ideal
1576
Finding the elements in the group of units of the ring of integers modulo n that are their own inverse.