Asymptotic Recovery in Fourier Spectral Methods for the Schrödinger Equation with Point Singularities

Yanjie Li, Sihong Shao

This paper studies the Fourier spectral method (FSM) for the Schrödinger equation with singular potentials $V\in H^s$, where $s>\max \{d/2-2,-1\}$ and $d$ denotes the spatial…