Example of a non commutative ring in which all non zero elements are invertible.
11541
Examples of a non-commutative division ring
93358
Find an example of a non-surjective field endomorphism
8787
In a ring $(A,+, \cdot)$ if $aba = a$ then $bab = b$ and all non zero elements in $A$ are invertible.
86724
Example of a non-zero module that has no associated primes
121008
A non-noetherian ring with all localizations noetherian
158426
Proving lemma about centrality of idempotent elements in a Ring with no nilpotent elements.
150961
An example for a homomorphism that is not an automorphism
4397
Finite rings without zero divisors are division rings.
120496
Examples of Non-Noetherian Valuation Rings
32741
Idempotents in a ring without unity (rng) and no zero divisors.
17059
A ring element with a left inverse but no right inverse?
36078
Example of a non invertible fractional ideal
149753
The structure of a Noetherian ring in which every element is an idempotent.
46843
A ring without the Invariant Basis Number property
151251
A simple algebra that is not semisimple
134991
Commutative non Noetherian rings in which all maximal ideals are finitely generated
94203
Examples for almost-semirings without absorbing zero