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 $\begin{bmatrix}A&B\\ 0&A \end{bmatrix}$

Keywords triangular ring


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

  • = has the property
  • = does not have the property
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Name Measure
cardinality 32
composition length left: 5right: 5
Krull dimension (classical) 0

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