The Brauer Group of ${\mathcal{Y}}_0(2)$

Niven Achenjang, Deewang Bhamidipati, Aashraya Jha +2

We determine the Brauer group of the Deligne-Mumford stack ${\mathcal{Y}}_0(2)$, the moduli space of elliptic curves with a marked $2$-torsion subgroup over bases of arithmetic inter…