This study is devoted to increasing the performance of the numerical methods for solving the
one-way Helmholtz equation in large-scale domains. The higher-order rational …

This study is devoted to the higher-order finite-difference numerical methods for solving the
pseudo-differential parabolic equation of diffraction theory. The relationship between the …

This paper is devoted to increasing the computational efficiency of the finite-difference
methods for solving the one-way Helmholtz equation in unbounded domains. The higher …

A stable Chebyshev-Padé rational approximation method of parabolic equation models is
developed by introducing stability constraints into a Chebyshev type rational approximation …

A new finite-difference approximation of the two-dimensional parabolic equation is proposed
in this paper. The specifics of the tropospheric radio-wave propagation problem are taken …