2 problems

Let $S_{j,2}(\Gamma_2[2])$ denote the space of vector-valued Siegel modular forms of degree $2$, weight $(j,2)$, and level $\Gamma_2[2]$. A Yoshida-lift generation conjecture. The sp…

Let $S_{j,k}(\Gamma_2[2])$ be the space of Siegel cusp forms of weight $(j,k)$ on the principal level-$2$ subgroup, and let $w_2$ act on newforms of level $2$. For new eigenforms ……