2 problems

Let $\Gamma(p)$ be the profinite automorphism group of the rooted $p$-ary tree, let $G$ be a closed subgroup, and let Hausdorff dimension be computed in $\Gamma(p)$. A subgroup is…

Let $G$ be an exceptional group, let $k$ have good characteristic for $G$, and let the two unipotent conjugacy classes under consideration consist of elements whose orders need not…