Abstract:
Spectral approach is proposed for the effective approximation of the accurate nonreflecting
artificial boundary conditions which equivalently substitute linear homogeneous
difference equations outside the bounded computational subdomain for non-stationary
problems. Basic idea is primarily illustrated by the simple example and then the ways of
generalization are proposed.
Application of the spectral approach is based upon the difference potentials method.
Necessary results concerning this method are presented here independently on the original
papers.