grandes-ecoles 2023 Q6

grandes-ecoles · France · mines-ponts-maths1__psi Not Maths

Let $M \in S _ { n } ^ { + } ( \mathbf { R } )$ be a non-zero matrix. Express $\| M \| _ { 2 }$ in terms of the eigenvalues of $M$.

Let $M \in S _ { n } ^ { + } ( \mathbf { R } )$ be a non-zero matrix. Express $\| M \| _ { 2 }$ in terms of the eigenvalues of $M$.