2 problems

In the setting of mod-$l$ representations of a reductive algebraic group $\textbf{G}$, let $\gamma$ be an automorphism of $\textbf{G}$ of prime order $l$, and let…

Let $l$ be a prime number, let $F$ be a number field, let $\operatorname{{\bf G}}$ be a reductive algebraic group over $F$, and let $\sigma$ be an automorphism of order $l$ of…