Finite-difference approximations for the first derivative, valid halfway between equidistant gridpoints, are in general much more accurate than the corresponding approximations, which are valid at ...

Finite difference methods have become a cornerstone in the simulation of seismic wave propagation, providing a robust numerical framework to approximate the differential equations that govern seismic ...

This is a preview. Log in through your library . Abstract Finite-difference versions of some recently developed Krylov subspace projection methods are presented and analysed in the context of solving ...