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应兰州大学数学与统计学院邓伟华教授的邀请，中国科学院数学与系统科学研究院郑伟英研究员将于2018年9月28日至9月30日访问兰州大学,期间将举办专题学术报告。

报告题目：On PML method for scattering problems in unbounded domains

时 间：9月30日上午 10：00

地 点：齐云楼815

报告摘要: In this lecture, I will talk about the perfectly matched layer (PML) method for acoustic and electromagnetic scattering problems. The PML method is widely used in the engineering literature and proves to be very efficient for solving wave propagating problems. Since the pioneering work of Berenger, remarkable progresses have been made in the study of PML methods for acoustic, electromagnetic, and elastic scattering problems in homogeneous background media. Two major issues to be tackled are the stability and the exponential convergence of PML solutions. However, the results for PML methods are still rare in two important application areas: (1) scattering problems in inhomogeneous media; (2) wave propagations in time domain. In this talk, I mainly focus on the stability and exponential convergence of PML methods for scattering problems in two-layer media. Moreover, some progresses and comments will also be made for time-domain PML methods.

欢迎广大师生光临!

郑伟英研究员简介

郑伟英，中国科学院数学与系统科学研究院研究员，“科学与工程计算”国家重点实验室副主任。2002年于北京大学获博士学位，2006-2007年为德国慕尼黑科技大学洪堡基金访问学者；2011年获国家磁约束聚变人才专项资助，2017年获国家杰出青年科学基金资助。主要研究电磁场和磁流体的数值方法及其应用。

甘肃省高校应用数学与复杂系统省级重点实验室

数学与统计学院

萃英学院

2018年9月27日