# Ring detail

## Name: Osofsky's $32$ element ring

Description: Let $A=\mathbb Z/(4)$ and $B=(2)/(4)$ be that ideal in $A$. $R$ is the triangular ring $\begin{bmatrix}A&B\\ 0&A \end{bmatrix}$

Krull dimension: 0

Keywords triangular ring

Reference(s):

• T.-Y. Lam. Lectures on modules and rings. (2012) @ p 79