2 problems

Let $\Gamma_\theta \subset {\rm SL}(2,\mathbb{Z})$ be the theta group of linear automorphisms of the two-torus, and let $U_N(A)$ denote the quantum propagator associated with…

Let $G$ be a split simply-connected almost simple group over a finite field, let $\sigma\in\operatorname{Aut}(R,\Delta)$, and let $\theta$ be the stable torsion automorphism determ…