應(yīng)yl7703永利官網(wǎng)邀請,美國肯塔基大學(xué)申仲偉教授將來我校交流,并于2024年5月9日上午做學(xué)術(shù)報告,歡迎全校師生參加.
報告題目:Dirichlet Problems in Perforated Domains
時 間:2024年5月9日(星期四) 10:00
地 點:理工樓631教室
報告摘要:This talk is concerned with the study of Dirichlet problems in a domain perforated with a large number of tiny holes. The study is motivated by the homogenization theory of elliptic equations and systems in perforated domains, which are used to model perforated materials and fluid flows in porous media. In a joint project with R. Righi and J. Wallace, we consider Laplace’s equation and establish W^{1,p} estimates with sharp bounding constants depending explicitly on the minimal distances between the holes and the size of holes. The proof relies on a large-scale estimate for harmonic functions in perforated domains. A key step involves an observation that a harmonic function in a perforated domain may be well approximated by solutions of an intermediate problem for a Sch?dinger operator in a fixed domain.
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報告人簡介
申仲偉,肯塔基大學(xué)杰出教授,14歲考入北京大學(xué)數(shù)學(xué)系,1989年在芝加哥大學(xué)獲得博士學(xué)位,主要從事調(diào)和分析與偏微分方程的研究。近年來,申仲偉教授在偏微分方程均勻化理論的研究上取得了一系列豐富而深刻的結(jié)果,在Journal of the American Mathematical Society, Communications in Pure and Applied Mathematics,Duke Mathematical Journal,Journal of the European Mathematical Society,Archive for Rational Mechanics and Analysis,Mathematische Annalen,Advances in Mathematics等國際權(quán)威期刊上發(fā)表論文90余篇。
申仲偉教授2012年當(dāng)選美國數(shù)學(xué)會會士,2016年當(dāng)選肯塔基大學(xué)藝術(shù)與科學(xué)學(xué)院杰出教授。并于2007-2011年任肯塔基大學(xué)數(shù)學(xué)系系主任。
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萃英學(xué)院
2024年5月6日