Given a matrix $$A$$. Is it possible to have a Jordan block form like:(adsbygoogle = window.adsbygoogle || []).push({});

$$\begin{pmatrix}

\lambda & 1 & 0 & 0\\

0 & \lambda & 0 & 0 \\

0 & 0 & \lambda & 1\\

0 & 0 & 0 & \lambda\\

\end{pmatrix}$$

?

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# Number of jordan blocks in Jordan decomposition

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