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中国科学院数学与系统科学研究院刘晓东副研究员学术报告通知
日期:   2016-10-31          点击量:   300

        应数学与统计学院的邀请,中国科学院数学与系统科学研究院刘晓东副研究员将于近期访问我院,来访期间将为师生做以下学术报告:

        报告题目:Recovery of an embedded obstacle and its surrounding medium by formally-determined scattering data
        时间:2016年11月01号(周二) 下午4:00-6:00
        地点:理科楼407

        摘要:We consider an inverse acoustic scattering problem in simultaneously recovering an embedded obstacle and its surrounding inhomogeneous medium by formally determined far-field data. It is shown that the knowledge of the scattering amplitude with a fixed incident direction and all observation angles along with frequencies from an open interval can be used to uniquely identify the embedded obstacle, sound-soft or sound-hard disregarding the surrounding medium. Furthermore, if the surrounding inhomogeneous medium is from an admissible class (still general), then the medium can be recovered as well. Our argument is based on deriving certain integral identities involving the unknowns and then inverting them by certain harmonic analysis techniques. These unique identifiability results are new to the literature.
    
        报告人简介:刘晓东,中国科学院数学与系统科学研究院副研究员,反散射领域国内青年专家,在SIAM J. Appl. Math., Inverse Problem等国际著名SCI期刊上发表了学术论文20多篇。
 

        欢迎感兴趣的师生参加! 

 


 
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