(一)
报告题目: Singularities in optimal transport
报告人: 陈世炳 教授 (中国科学技术大学)
时间: 2024年10月13下午3:30-4:30
地点:理科楼数学系A404
摘要: In the optimal transport problem, singularities may arise when the target domain is non-convex. In this talk, we will discuss some recent results concerning the structure of singularities. In particular, we will show that the singular set is locally a smooth curve away from a finite number of points, provided the target domain is a non-convex polygon. This is based on joint work with Yuanyuan Li and Jiakun Liu.
报告人简介: 陈世炳,中科大教授,国家青年千人计划人才。主要从事非线性椭圆方程及其应用的研究,在最优传输、凸几何、自由边值问题及其相关的Monge-Ampere方程方面做出了一系列重要成果,部分成果发在顶尖杂志上Annals Math上, 2022年获得国家杰出青年基金。
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(二)
报告题目:: On variational problems with a convexity constraint
报告人: 周斌 教授 (北京大学)
时间: 2024年10月13下午4:30-5:30
地点:理科楼数学系A404
摘要:In this talk, I will report the recent progress on variational problems with a convexity constraint, including the interior regularity of minimizers and the approximation by singular Abreu equations. The results apply to many problems which contains the principal-agent problems studied by Figalli-Kim-McCann. In particular, the famous Rochet-Chone mode is included.
报告人简介: 周斌,北京大学教授,国家优秀青年基金获得者。主要从事几何分析和非线性偏微分方程的研究,在高阶和奇异Abreu方程及其几何应用的方面做出了一系列重要成果。
邀请人:简怀玉