講座主題:Inverse scattering for a random source/potential
專家姓名:李建樑
工作單位:長(zhǎng)沙理工大學(xué)
講座時(shí)間:2021年10月26日 16:00-17:00
講座地點(diǎn):騰訊會(huì)議:757375919
主辦單位:煙臺(tái)大學(xué)數(shù)學(xué)與信息科學(xué)學(xué)院
內(nèi)容摘要:
This talk is concerned with the inverse scattering for a random source/potential, where the source/potential is assumed to be microlocally isotropic generalized Gaussian random field such that its covariance operator is a classical pseudo-differential operator. For such a distributional source/potential, we show that the direct scattering problem admits a unique solution in the sense of distribution. For the inverse scattering problem, we demonstrate that the principle symbol of the covariance operator can be uniquely determined with probability one by the high frequency limit of the averaged near-field or far-field data obtained form a single path of the random source/potential.
主講人介紹:
李建樑,,2009年6月本科畢業(yè)于中國(guó)農(nóng)業(yè)大學(xué)理學(xué)院,,2014年7月獲中國(guó)科學(xué)院大學(xué)理學(xué)博士學(xué)位,。2014年7月起任長(zhǎng)沙理工大學(xué)數(shù)學(xué)與統(tǒng)計(jì)學(xué)院講師,。2017年11月-2018年11月受國(guó)家留學(xué)基金委資助赴美國(guó)普渡大學(xué)數(shù)學(xué)系訪問(wèn)一年,。主要研究領(lǐng)域?yàn)榉瓷⑸鋯?wèn)題的理論與數(shù)值方法,、隨機(jī)反散射問(wèn)題的理論研究,。主持國(guó)家自然科學(xué)基金青年項(xiàng)目一項(xiàng),,湖南省教育廳一般項(xiàng)目一項(xiàng),。在《Inverse Problems in Science and Engineering》,、《Applicable Analysis》、《Computers and Mathematics with applications》,、《SIAM Journal on Imaging Sciences》,、《SIAM Journal on Mathematical Analysis》、《Communications in Partial Differential Equations》發(fā)表論文8篇,。