2 problems

Let $K$ be a global field, let $S$ be a finite set of places, and retain the paper's notation for the corresponding arithmetic group $({\mathbf{G}},S)$. The pair has the congruence…

Let $F_{4(-20)}$ be the simple real Lie group of the indicated type, and let $\Gamma$ be a lattice in $F_{4(-20)}$. CSP conjecture for $F_{4(-20)}$. Every lattice $\Gamma$ in the s…