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2018-11
General volumes in the Orlicz|Brunn|Minkowski theory and a related Minkowski problem
Title: General volumes in the Orlicz|Brunn|Minkowski theory and a related Minkowski problemSpeaker：Professor Deping Ye (Memorial University of Newfoundland, CANADA)Time: 10:30-11:30 Dec. 18, 2018 (Tuesday)Location: 200-9 Sir Run Run Shaw Business Administration buildingAbstract: In this talk, I will present our new contributions to Minkowski type problems. In particular, I will first discuss the ...
29
2018-11
On the Fourier Transform of Signals on Graph（二）
题目: On the Fourier Transform of Signals on Graph 报告人：杨力华（中山大学教授） 地点：工商管理楼200-9 时间：2018年12月8号下午4:30-5:30 摘要:The definition of the graph Fourier transform (GFT) is a fundamental issue in graph signal processing. Conventional GFT is defined as the eigenvectors of the graph Laplacian matrix, which minimize the signal variation in the l2 norm. Based on the l1 norm sig...
29
2018-11
On the Fourier Transform of Signals on Graph（一）
题目: On the Fourier Transform of Signals on Graph 报告人：杨力华（中山大学教授） 地点：工商管理楼200-9 时间：2018年12月7号下午2：30-4：30 摘要:The definition of the graph Fourier transform (GFT) is a fundamental issue in graph signal processing. Conventional GFT is defined as the eigenvectors of the graph Laplacian matrix, which minimize the signal variation in the l2 norm. Based on the l1 nor...
28
2018-11
几何分析讨论班第五次
题目： Blow-up phenomena for the constant scalar curvature and constant boundary mean curvature equation 报告人：陈学长 （南京大学） 时间：11月30日（周五） 9:30-12:00地点：工商楼105室 摘要: Inspired by the non-compact examples for the Yamabe equation due to Brendle, Brendle-Marques, we construct an example to show that the full set of the solutions to the constant scalar curvature and constan...
26
2018-11
On u-deformed Kottwitz's involution modules
Title: On u-deformed Kottwitz's involution modules报告人：胡峻 教授时间：2018年11月28日（周三）下午4:00地点：玉泉校区工商楼105摘要: Let (W,S) be a Coxeter system and $/ast$ an automorphism of W with order $/leq 2$ and $S^{/ast}=S$.Lusztig and Vogan have introduced a u-deformed version $M_u$ of Kottwitz's involution module over the Iwahori--Hecke algebra $H_{u}(W)$ with Hecke parameter $u^2...
26
2018-11
Parallelizable Algorithms for Optimization Problems with Orthogonality Constraints
题目：Parallelizable Algorithms for OptimizationProblems with Orthogonality Constraints 报告人：刘歆(中国科学院数学与系统科学研究所) 时间：11月27日 下午16:00-17:00 地点：逸夫工商楼105 摘要：Toconstruct a parallel approach for solving optimization problems withorthogonality constraints is usually regarded as an extremely difficultmission, due to the low scalability of the orthogonalization pro...
26
2018-11
Towards the efficient and robust numerical methods for Kohn-Sham equation
题目：Towards the efficient and robust numerical methods for Kohn-Sham equation 报告人：胡光辉（澳门大学） 时间：11月27日 下午15:00-16:00 地点：逸夫工商楼105 题目：Towardsthe efficient and robust numerical methods for Kohn-Sham equation 摘要：In thistalk, we will introduce our recent work on the adaptive finite elementframework for Kohn-Sham density functional theory. The background of Kohn-...
22
2018-11
Theory of Compactly Supported Quasi-tight Framelets
题目：Theory of Compactly Supported Quasi-tight Framelets时间：11月27日（周二）下午16:00地点：工商楼4楼报告厅报告人：Bin Han教授，加拿大阿尔伯塔大学摘要：Constructing compactly supported multivariate tight or dual framelets, even without directionality or basic vanishing moments, is known to be a very challenging problem because it is linked to sum of squares and factorization of multivariate Laur...