学术报告
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Neumann Data and Second Variation Formula of Renormalized Area for Conformally Compact Static Spaces题目:Neumann Data and Second Variation Formula of Renormalized Area for Conformally Compact Static Spaces报告人:王志鑫 博士(上海交通大学)地点:致远楼103室时间:2025年4月23日 13:30-14:30Abstract: We derive the first and second variation formulas for the renormalized area for static Einstein spaces along a specific direction, demonstrating that the negativity of the Neumann data implies insta...2025年04月23日
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Some Most Effective Numerical Methodologies for Linear and Nonlinear Inverse Problems题目:Some Most Effective Numerical Methodologies for Linear and Nonlinear Inverse Problems报告人:邹军 教授(香港中文大学)地点:致远楼108室时间:2025年4月23日 14:00-15:00Abstract: This talk will review the up-to-date developments of two most important numerical methodologies, the direct sampling-type methods and the adaptive-type methods, for solving general inverse problems, including the ne...2025年04月22日
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Applications and Potential of Monolithic Projection-Based Methods with Staggered Time Discretization题目:Applications and Potential of Monolithic Projection-Based Methods with Staggered Time Discretization报告人:潘晓敏 助理教授 (上海大学)地点:致远楼101室时间:2025年4月18日 周五 10:00-11:00摘要:An advanced monolithic projection-based method equipped with staggered time discretization (MPM-STD) has been crafted to probe into the non-Oberbeck–Boussinesq (NOB) effects within a diverse arra...2025年04月17日
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关于Alexandrov几何中的第二基本型题目:关于Alexandrov几何中的第二基本型报告人:王雨生 教授(北京师范大学)地点:宁静楼110室时间:2025年4月18日 16:30-17:30Abstract: 我们首先简要介绍曲率有下界的Alexandrov空间,尤其是其中的极值子集及相关性质;再介绍我们基于极值子集定义的拟凸子集及其性质;最后我们给出基于这两种子集新定义的第二基本型整体有下界的子集。欢迎各位参加2025年04月16日
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Existence and Regularity in Optimal Transportation题目:Existence and Regularity in Optimal Transportation报告人:汪徐家 教授(西湖大学)地点:致远楼108室时间:2025年4月18日 9:30-10:30Abstract: Due to its wide applications, the optimal transportation has been extensively studied in the last three decades. By Kantorovich’s dual functional, the optimal mapping is determined by the potential function, which satisfies a Monge-Ampere type equation...2025年04月16日
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Neumann-Poincaré Inequalities on Minimal Submanifolds and Related Results题目:Neumann-Poincaré Inequalities on Minimal Submanifolds and Related Results报告人:丁琪 教授(复旦大学)地点:致远楼101室时间:2025年4月17日 10:00-11:00Abstract: The Neumann-Poincaré inequality is a powerful tool in geometric analysis. In 1972, Bombieri and Giusti proved a celebrated Neumann-Poincaré inequality on area-minimizing hypersurfaces in Euclidean space. We will talk about its gene...2025年04月16日
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Fake Surface and Andrews-Curtis Conjecture题目:Fake Surface and Andrews-Curtis Conjecture报告人:邱杨 特聘研究员(南开大学陈省身数学研究所)地点:致远楼108室时间:2025年4月17日 10:00-11:00摘要:The Andrews-Curtis conjecture states that every balanced presentation of the trivial group can be reduced to the standard one with a sequence of elementary transformations. We try to study this conjecture through a family of special 2-complex...2025年04月10日
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Data Integration Using Covariate Summaries from External Sources题目:Data Integration Using Covariate Summaries from External Sources报告人: 张宇谦 助理教授(中国人民大学)地点: 致远楼101室时间:2025年4月9日 10:00-11:30摘要:In modern data analysis, information is frequently collected from multiple sources, often leading to challenges such as data heterogeneity and imbalanced sample sizes across datasets. Robust and efficient data integration methods a...2025年04月07日
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寻找第四类数值方法题目:寻找第四类数值方法报告人:邵嗣烘 教授 (北京大学)地点:致远楼101室时间:2025年4月3日 上午10:00摘要:微分方程数值解近百年的发展汇成了三大类基本的数值离散方法:50年代的有限差分,60年代的有限元和70年代的谱方法。这三类方法的收敛性都依赖于解的正则性,要达到最优的收敛阶需要精心调配网格,导致在求解高维问题时会遇到维度灾难。当数据和智能科学的热潮涌来时,情况变得更糟糕,因为可能再也没有微分方程可...2025年03月31日
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Frenkel-Kontorova Type Models in 1D Periodic and Aperiodic Media题目:Frenkel-Kontorova Type Models in 1D Periodic and Aperiodic Media报告人:苏喜锋 副教授 (北京师范大学)地点:致远楼108室时间:2025年3月20日 15:30-16:30摘要:We will first introduce some basic settings for Frenkel-Kontorova type models in solid state physics and survey about the related both classical and quantum models.We then focus on deposition of one dimensional chains of interacting pa...2025年03月18日