Purpose of this note is to give an overview on superoscillating sequences and some of their properties. We discuss their persistence in time under Schrödinger equation, we propose various classes of superoscillating functions and we also briefly mention how they can be used to approximate some generalized functions.
F. Colombo, I. Sabadini, D.C. Struppa, A panorama on superoscillations, AIP Conf. Proc., 2116 (2019), 020002 (4pp). https://doi.org/10.1063/1.5113982