This paper proposes and analyzes a BEM-FEM scheme to approximate a time-harmonic diffusion problem in the plane with non-constant coefficients in a bounded area. The model is set as a Helmholtz transmission problem with adsorption and with non-constant coefficients in a bounded domain. We reformulate the problem as a four-field system. For the temperature and the heat flux we use piecewise constant functions and lowest order Raviart-Thomas elements associated to a triangulation approximating the...
This paper proposes and analyzes a BEM-FEM scheme to approximate
a time-harmonic diffusion problem in the plane with non-constant
coefficients in a bounded area. The model is set as a Helmholtz
transmission problem with adsorption and with non-constant
coefficients in a bounded domain. We reformulate the problem as a
four-field system. For the temperature and the heat flux we use
piecewise constant functions and lowest order Raviart-Thomas
elements associated to a triangulation approximating the...
In this paper we study a free boundary problem appearing in electromagnetism and its numerical approximation by means of boundary integral methods. Once the problem is written in a equivalent integro-differential form, with the arc parametrization of the boundary as unknown, we analyse it in this new setting. Then we consider Galerkin and collocation methods with trigonometric polynomial and spline curves as approximate solutions.
In this paper we study a free boundary problem appearing in
electromagnetism and its numerical approximation by means of
boundary integral methods. Once the problem is written in a
equivalent integro-differential form, with the arc
parametrization of the boundary as unknown, we analyse it in
this new setting. Then we consider Galerkin and collocation
methods with trigonometric polynomial and spline curves as
approximate solutions.
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