- #1

Math Amateur

Gold Member

MHB

- 3,998

- 48

I am focused on Section 4.2: Noetherian and Artinian Modules and need some help to fully understand Example 6 on page 109 ... ...

Example 6 reads as follows:View attachment 6122In the above example Bland asserts that the matrix ring \(\displaystyle \begin{pmatrix} \mathbb{Q} & \mathbb{R} \\ 0 & \mathbb{R} \end{pmatrix}

\)

is right Artinian but not left Artinian ...Can someone please help me to prove this assertion ...

Peter