TY - JOUR AU - Ian Kiming AU - Nadim Rustom TI - Dihedral Group, $4$-Torsion on an Elliptic Curve, and a Peculiar Eigenform Modulo $4$ JO - Symmetry, integrability and geometry: methods and applications PY - 2018 VL - 14 UR - http://geodesic.mathdoc.fr/item/SIGMA_2018_14_a56/ LA - en ID - SIGMA_2018_14_a56 ER -