grandes-ecoles 2023 Q23

grandes-ecoles · France · x-ens-maths-a__mp Groups Algebra and Subalgebra Proofs

Show that $\ker(T + \mathrm{id}) = U$ and deduce that $\ker(T - \mathrm{id}) \neq \{0\}$.

Show that $\ker(T + \mathrm{id}) = U$ and deduce that $\ker(T - \mathrm{id}) \neq \{0\}$.