基础数学系学术报告 --北航微分几何讨论班(2021春第10讲) 题目:Riemannian plane without conjugate points报告人:葛 剑 副教授(北京大学)时间:2021年5月14日 10:30-11:30地点:沙河校区E404摘要:In this talk, we will discuss geometric properties of Riemannian plan without conjugate points with focus on open problems and conjectures in this area. Some of our recent progresses will be discussed. 报...
基础数学系学术报告 --北航微分几何讨论班(2021春第9讲) 题目:Domination results in n-Fuchsian fibers报告人:戴 嵩 副教授(天津大学)时间:2021年5月14日 9:30-10:30地点:沙河校区E404摘要:We start this talk with some basic linear algebras. Consider m(A)=[A,A*] on sl(n,C). Ness studied the (normalized) square of norm |m|^2 and showed some nice properties of |m|^2 which characterize the unitary orb...
学术报告魏益民(复旦大学)报告时间:15:00-16:00,2021-5-17(星期一)报告地点:北航沙河校区主楼E404报告题目:Generalized Tensor Function via the Tensor Singular Value Decomposition based on the Tensor-Tensor Decomposition 报告摘要:In this paper, we present the definition of generalized tensor function according to the tensor singular value decomposition (T-SVD) based on the tensor T-product. A...
学术报告张雄军(华中师范大学)报告时间:10:30-11:30,2021-5-13(星期四)腾讯会议: 512 135 097 密码:0513 报告地点:北航沙河校区主楼E402报告题目:Low Rank Tensor Completion with Poisson Observations 报告摘要:Poisson observations for videos are important models in video processing and computer vision. In this talk, we study the third-order tensor completion problem with Poisson observations. T...
数学学院学术报告Analysis Seminar 2021-05-13 报告题目: 一类矩阵积分不等式报告人:陈婷 (南开大学)时间: 2021-05-13 16:00-17:00地点: 沙河主楼 E404摘要: 本报告将研究与Hardy-Littlewood-Sobolev不等式相关的多线性矩阵型积分不等式。其构建的工具主要依赖于多线性行列式型积分不等式以及重排不等式。报告人简介:陈婷,南开大学讲师,研究方向为调和分析,2016 年英国爱丁堡大学获博士学位,已在JFAA, JGA, Math Ann,...
数学学院基础数学学术报告Analysis Seminar 2021-05-13 报告题目: A stationary set method for estimating oscillatory integrals报告人:Ruixiang Zhang (IAS, Princeton)时间: 2021-05-13 10:00-11:00地点: Tencent meeting ID:819 207 732 摘要: Given a polynomial $P$ of constant degree in $d$ variables and consider the oscillatory integral $$I_P = \int_{[0,1]^d} e(P(\xi)) \mathrm{d}\xi.$$ Assuming...