grandes-ecoles 2019 Q31

grandes-ecoles · France · centrale-maths2__psi Matrices Linear Transformation and Endomorphism Properties
We assume $n \geqslant 2$. Let $u$ be an endomorphism of $E$ nilpotent of index $p \geqslant 2$, and suppose there exist vectors $x_1, \ldots, x_t$ in $E$ such that $E = \bigoplus_{i=1}^{t} C_u\left(x_i\right)$.
Give the matrix of $u$ in a basis adapted to the decomposition $E = \bigoplus_{i=1}^{t} C_u\left(x_i\right)$.
We assume $n \geqslant 2$. Let $u$ be an endomorphism of $E$ nilpotent of index $p \geqslant 2$, and suppose there exist vectors $x_1, \ldots, x_t$ in $E$ such that $E = \bigoplus_{i=1}^{t} C_u\left(x_i\right)$.

Give the matrix of $u$ in a basis adapted to the decomposition $E = \bigoplus_{i=1}^{t} C_u\left(x_i\right)$.