The method of boundary integral equations for a mixed scattering problem

The method of boundary integral equations for a mixed scattering problem
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混合散射问题的边界积分方程法

DOI:
10.1016/j.jde.2009.02.012
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发表时间:
2009-06
影响因子:
2.4
通讯作者:
Yao, Mao
Yao, Mao
中科院分区:
数学2区
文献类型:
--
作者:
Yan, Guozheng;Yao, Mao

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本文研究了电磁时谐平面波被截面为R2的有界区域和开口圆弧的无限长圆柱体的散射问题。为此,我们求解了R2中Helmholtz方程的散射问题,其中散射体是裂纹Γ和有界障碍物D的组合,在Γ上有Dirichlet阻抗型边界条件,在D上有Dirichlet边界条件(D∈C2).应用位势理论,该问题可以转化为一个边界积分系统。利用Fredholm理论证明了该系统解的存在唯一性。
In this paper we consider the scattering of an electromagnetic time-harmonic plane wave by an infinite cylinder having an open arc and a bounded domain in R2as cross section. To this end, we solve a scattering problem for the Helmholtz equation in R2where the scattering object is a combination of a crack Γ and a bounded obstacle D, and we have Dirichlet-impedance type boundary condition on Γ and Dirichlet boundary condition on ∂D (∂D∈C2). Applying potential theory, the problem can be reformulated as a boundary integral system. We establish the existence and uniqueness of a solution to the system by using the Fredholm theory.
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发表时间: 2000-04
影响因子: 3.5
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