Explicit equations of some elliptic modular surfaces

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/68094We present explicit equations of semi-stable elliptic surfaces (i.e., having only type $I_n$ singular fibers) which are associated to the torsion-free genus zero congruence subgroups of the modular group as classified by A. Sebbar.17 pagesAlgebraic GeometryNumber Theory14J27; 14J29Explicit equations of some elliptic modular surfacestext