Standard Hilbert modular surfaces (awaiting review)

Let $\Gamma$ be the congruence subgroup associated to a Hilbert modular surface. Similar to families of modular curves, each type of congruence subgroup parametrizes abelian varieties with certain level structure.

Presently, two special cases are prioritized in this database, namely, $\Gamma_0(\mathfrak{N})_{\mathfrak{b}}$ and $\Gamma_0^1(\mathfrak{N})_{\mathfrak{b}}$.