
Discrete non-local boundary conditions for split-step Padé approximations of the one-way Helmholtz equation
Keywords: 02.70.Bf; 31.15.Fx; 42.82.−m; 43.30.+m; 92.10.VzSplit-step method; Padé approximation; Finite difference method; One-way Helmholtz equation; Discrete transparent boundary conditions