grandes-ecoles 2025 Q6d

grandes-ecoles · France · polytechnique-maths-a__mp Not Maths

We denote $G_v = \varphi(u^r(v))$. Prove that there exists an element $F_v$ of $\mathcal{D}$ such that $$G_v = \xi^r(F_v).$$

We denote $G_v = \varphi(u^r(v))$. Prove that there exists an element $F_v$ of $\mathcal{D}$ such that
$$G_v = \xi^r(F_v).$$