微分动力系统学术报告报告题目: On the multifractal analysis for singular hyperbolic attractors报告人:王晓东(上海交通大学)时间: 2022-09-21 09:30-10:30腾讯会议:387-118-158摘要: We study the multifractal analysis for singular hyperbolic attractors, including the geometric Lorenz attractors. For each singular hyperbolic homoclinic class whose periodic orbits are all homoclinically related and...
数学科学学院学术报告 Sparse Representation and Recovery of Signals and Images谌稳固(北京应用物理与计算数学研究所) 报告时间: 2022年9月15日,星期四,上午9:00-10:00报告地点:腾讯会议:929-256-258 密码:1123报告摘要: In this talk, we consider the reconstruction of signals and images by prior information from incomplete or degraded observations. The priors includes sparsity, low-rankness, signa...
数学科学学院学术报告 The subset selection and the partition problem for high rank positive semidefinite matrices徐孜立(香港科技大学) 报告时间:2022年9月9日,星期五,下午4:00-5:00报告地点:腾讯会议:756-827-410 会议密码:1123 报告摘要:Recently Marcus-Spielman-Srivastava proved Weaver’s KS conjecture, which gives a positive solution to the Kadison-Singer problem. Cohen and Branden independ...
北航数学论坛学术报告Complete Solution to the Most General Nonlinear Filtering Problems and Its Implementation丘成栋(清华大学&北京雁西湖应用数学研究院) 报告时间:15:00-16:00,2022-9-15(星期四)报告地点: 线上会议(腾讯会议号:729-495-895)会议链接:https://meeting.tencent.com/dm/CGgn6W0ZoOp8 内容简介:The famous filtering problem of estimating the state of a stochastic dynamical system from...
数学科学学院学术报告 Two-subspace randomized extended Kaczmarz method for linear least-squares problems巫文婷(北京理工大学数学与统计学院) 报告时间:2022年8月17日,星期三,上午10:00-11:00报告地点:#腾讯会议:136-216-395 会议密码:0817报告摘要:Based on a generalization of the two-subspace randomized Kaczmarz method without the assumptions of unit row norms and full column rank on the coefficie...
数学科学学院学术报告 On Chebyshev-Davidson Method for Symmetric Generalized Eigenvalue Problems 苗存强(中南大学数学与统计学院) 报告时间:2022年8月17日,周三,上午9:00-10:00报告地点:#腾讯会议:136-216-395 会议密码:0817报告摘要:As we know, polynomial filtering technique is efficient for accelerating convergence of standard eigenvalue problems, which, however, has not appeared for solving gen...