New and old Saito-Kurokawa lifts classically via $L^2$ norms and bounds on their supnorms: level aspect

Pramath Anamby, Soumya Das

In the first half of the paper, we lay down a classical approach to the study of Saito-Kurokawa (SK) lifts of (Hecke congruence) square-free level, including the allied new-oldform…