grandes-ecoles 2022 Q5

grandes-ecoles · France · mines-ponts-maths2__psi Not Maths

Let $N$ be a matrix in $M_{n}(\mathbf{R})$ similar to an almost diagonal matrix. Prove that $N$ is semi-simple.

Let $N$ be a matrix in $M_{n}(\mathbf{R})$ similar to an almost diagonal matrix. Prove that $N$ is semi-simple.