学术报告微分几何讨论班(2024秋第8讲)The Monge-Ampere equation in convex polytope报告人:沈伟明 教授(首都师范大学)时间:2024年12月3日 周二3:00-4:00地点:沙河主E404摘要:I will talk about the existence and regularity of solutions for the Monge-Ampere equation in convex polytope. This is based on joint works with Genggeng Huang. 报告人简介:沈伟明,首都师范大学副教授。2016年博士毕业于北京大学...
数学科学学院学术报告 First-Order Algorithms for Single-Ratio Minimization Problems 李洽(中山大学) 报告时间:2024年12月06日 周五 上午 09:00-10:00报告地点:腾讯会议:382-838-649 会议密码:1206报告摘要:In this talk, we focus on a class of single-ratio minimization problems, where the numerator of the objective is the sum of a nonsmooth nonconvex function f and a smooth nonconvex function h, wh...
应用数学系学术报告微分几何讨论班(2024秋第7讲)题目:Delta-stable minimal hypersurfaces in Euclidean space报告人:洪寒 教授(北京交通大学)时间:2024年11月28日(周四) 15:10-16:10地点:沙河主E404摘要:We extend several results established for stable minimal hypersurfaces to δ-stable minimal hypersurfaces. These include the regularity and compactness theorems for immersed δ-stable minimal hype...
北航数学论坛学术报告微分几何讨论班(2024秋第6讲)题目:Very weak solutions of the Dirichlet problem for 2-Hessian equation报告人:邱国寰(中科院数学与系统科学研究院)时间:2024年11月28日(周四) 14:00-15:00地点:沙河主E404摘要:Weyl's lemma states that every weak solution of Laplace's equation is also a smooth solution. We find that there is no Weyl's lemma for 2-Hessian equations. For any α s...
北航数学论坛学术报告Leveraging unlabeled data and model averaging to improve prediction张新雨(中科院数学与系统科学研究院)时间:2024年11月27日(周三)上午10:00-11:00 地点:沙河国实E404摘要: The available data in semi-supervised learning usually consists of relatively small sized labeled data and much larger sized unlabeled data. How to effectively exploit unlabeled data is the key issue. In th...
数学学院基础数学系学术报告--- 分析、偏微分方程与动力系统讨论班(2024秋季第12讲)Multilinear and Multiparameter Spectral Multipliers on Lie Groups of Polynomial Growth Jiman Zhao (Beijing Normal University)时间:2024年11月29日 (周五下午) 14:00-15:00 pm地点:#腾讯会议:482-344-9963 会议密码:123456摘要:In this talk, we will introduce some results about multilinear spectral multipliers on Lie Gro...