2 problems

Let $\tau$ be as in the surrounding discussion, and let $\theta_{\Delta(\tau,\ell)}\in\Theta_{\Delta(\tau,\ell)}$ and…

Let $1 leq ell<n$. Let $theta{Delta(tau,ell)}$ and $theta{Delta(tau,2n+ell)}$ be given theta functions, and let $f'{Delta(tau,2n),s}$ be a section of the relevant induced represent…