数学科学学院学术报告 Gradient Descent with Random Initialization for Symmetric Tensor Decomposition 刘海霞 博士(华中科技大学) 报告时间:2021年6月1日星期二 下午2:00-3:00会议地点:沙河E404(线下); 腾讯会议ID: 127 416 879(线上)报告摘要:Symmetric tensor decomposition is of great importance in applications. Several studies have employed greedy approach for tensor with order m > 2. That is,...
数学科学学院学术报告 Uniqueness and stability for the solution of a nonlinear least squares problem 黄 猛 博士(香港科技大学) 报告时间:2021年6月1日星期二 下午4:00-5:00会议地点:沙河E404(线下); 腾讯会议ID: 127 416 879(线上)报告摘要:Nonlinear least squares problems have wide applications in data fitting, function approximation and others in signal processing and machine learning. In thi...
微分动力系统学术报告报告题目: Quasi-attractors of differentiable dynamical systems报告人:王晓东 (上海交通大学)时间: 2021-05-28 14:30-15:30 地点: 沙河校区,E502摘要: The notion of quasi-attractor generalizes that of attractor. Quasi-attractors always exist by Conley's theory while attractors may not. Moreover, for C1-generic differentiable dynamical systems, quasi-attractors attract most (ge...
微分动力系统学术报告报告题目: 奇异双曲吸引子的一些遍历性质报告人:杨大伟 (苏州大学)时间: 2021-05-28 16:00-17:00地点: 沙河校区,E502摘要: 一致双曲性曾是微分动力系统中的一个核心课题。经过多年的研究,一致双曲系统的性质相对清楚。人们发现了很多持续非双曲的系统,如Newhouse现象、Lorenz吸引子等。于是,研究所谓的beyond uniform hyperbolicity渐成微分动力系统的主流。以Lorenz吸引子为原型,Morales-Pacifi...
数学学院学术报告Analysis Seminar 2021-05-20 报告题目: Full derivation of the wave kinetic equation报告人:Yu Deng (University of Southern California)时间: 2021-05-20 10:00-11:00 am地点: Tencent meeting ID:766 702 899摘要: The wave kinetic equation is a central topic in the theory of wave turbulence, which concerns the thermodynamic limit of interacting wave systems. It can be traced back t...