2 problems

Let $T(m,n;c)$ denote the Salié sum for odd positive $c$, and let $\theta$ be the inverse of $L$ modulo $c$ when it exists. For every $\epsilon>0$ there is a $\delta>0$ such that, wh…

Let $a$ and $q$ be integers with $q\ge2$, $(a,q)=1$, and $q$ not a perfect square. Let $H,K\ge1$ and let $\lambda,\mu$ be real numbers. Write $e(t)=e^{2\pi i t}$, let $\overline h$…