Academy of Mathematics and Systems Science, CAS
Colloquia & Seminars

Speaker:	张磊，浙江工业大学
Inviter:	殷涛
Title:	The core-shell obstacle scattering in a multilayered medium
Language:	Chinese
Time & Venue:	2022.12.20 15:30-16：15 腾讯会议:567 855 609
Abstract:	Scattering from the coated targets embedded in a multilayered medium has attracted much interest during recent years for extensive applications, such as sea radar target detection and underwater radar surveillance. Over the past few decades, the scattering of electromagnetic waves by various composite targets has been investigated extensively by many researchers. We consider the scattering from 3D core-shell structures in a two-layered lossy medium with an interface by the boundary integral equation method in this talk. We present a novel boundary integral equation formulation with difference type integral kernels for the scattering problem that the singularity of the integral kernel is reduced. It leads to a well-posed integral operator system, as well as provides a convenience for numerical calculation. We prove the well-posedness of the scattering problem with the variational method, integral equation, and operator theory. Furthermore, we study the numerical solution for the integral equation.