The 26 papers selected for publication consider such topics as a kind of Riemann boundary value problem for tri-harmonic functions in Clifford analysis, high-frequency asymptotics for the modified

Helmholtz equation in a half-plane, positive solutions of singular third-order three-point boundary value problems, the numerical simulation of long-period ground motion on basin effects, and the second fundamental problem of periodic plane elasticity of a one-dimensional hexagonal quasicrystal.

6) Beam Propagation Method (BPM): A numerical analysis technique in electromagnetics for solving the

Helmholtz equation under conditions of a time-harmonic wave.

The model was solved at first by using one of the most commonly employed algorithms for matrices arising from finite element formulations for the Helmholtz equation (Von Erstoff et al.

Finite element solution to the Helmholtz equation with high wave number Part I: The h-version of the FEM.

mu][epsilon](x) = 1, it is then clear that one is led to deal with the Helmholtz equation.

Helmholtz equation, for which a complete set of boundary conditions are not available.

Many applications in physics deal with the

Helmholtz equation in three dimensions.

j] is a solution of the vector

Helmholtz equation [[DELTA].

The idea of linking gravitation with wave mechanics of Quantum Mechanics reminds us to the formal connection between

Helmholtz equation and Schrodinger equation [22].

12] --, Sine inversion of the

Helmholtz equation without computing the forward solution, in Proc.

In static conditions (11) coincides with the

Helmholtz equation.

The numerical solution of sequences of algebraic linear systems from the discretization of the real and complex

Helmholtz equation and of the diffusion equation in a rectangle illustrate the performance of the proposed approaches.