Explicit representation of Green function for 3Dimensional exterior Helmholtz equation

Details Explicit representation of Green function for 3Dimensional exterior Helmholtz equation Explicit representation of Green function for 3Dimensional exterior Helmholtz equation

2007-09-12

arxiv.org/abs/0709.1929v2

Theoretical and Mathematical Physics Volume 157, Number 2, 1503-1513, 2008

Physics

Mathematical Physics

Scientific paper

10.1007/s11232-008-0125-5

We have constructed a sequence of solutions of the Helmholtz equation forming an orthogonal sequence on a given surface. Coefficients of these functions depend on an explicit algebraic formulae from the coefficient of the surface. Moreover, for exterior Helmholtz equation we have constructed an explicit normal derivative of the Dirichlet Green function. In the same way the Dirichlet-to-Neumann operator is constructed. We proved that normalized coefficients are uniformly bounded from zero.

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