学术报告Stabilization of stochastic nonlinear delay systems driven by Lévy processes朱全新湖南师范大学报告时间:2025年11月29日 星期六 下午 16:00-17:00报告地点:沙河校区E806报告摘要:In this talk, we address the stabilization problem for a class of stochastic nonlinear delay systems driven by Lévy processes. By introducing a novel event-triggered strategy and employing techniques from stochast...
基础数学系学术报告An estimate for spherical functions on SL(3,R)李晓承(南京理工大学)报告时间:10:30-11:30,2025-11-25(星期二)报告地点:沙河校区主楼E806内容简介:We prove an estimate for spherical functions $\varphi_\lambda(a)$ on SL(3,R), establishing uniform decay in the spectral parameter $\lambda$ when the group variable $a$ is restricted to a compact subset of the abelian subgroup $A$...
数学科学学院学术报告 Faster stochastic cubic regularized Newton methods with momentum 彭拯(湘潭大学) 报告时间:2025年11月25日 星期二 下午 14:00-15:00报告地点:腾讯会议:517-904-607 会议密码:1125报告摘要:We propose faster SCRN methods that incorporate gradient estimation with small, controlled errors and Hessian estimation with momentum-based variance reduction. These methods are particul...
数学科学学院学术报告 An Augmented Lagrangian Primal-Dual Semismooth Newton Method for Multi-Block Composite Optimization 户将(清华大学) 报告时间:2025年11月20日 星期四 下午 15:30-16:30报告地点:沙河校区E806报告摘要:In this talk, we develop a novel primal-dual semismooth Newton method for solving linearly constrained multi-block convex composite optimization problems which include commonly ...
数学科学学院学术报告 Efficient Proximal Splitting Algorithms for Data-Driven Nonconvex Learning Optimization Problems with Applications 吴中明(南京信息工程大学) 报告时间:2025年11月20日 星期四 下午16:30-17:30报告地点:沙河校区E806报告摘要:Traditional optimization methods offer strong interpretability and generalizability, while data-driven deep learning excels at feature extraction. Combin...
数学科学学院学术报告 A polyhedral study of frustration index problems 陈伟坤(北京理工大学) 报告时间:2025年11月20日 星期四 下午14:30-15:30报告地点:沙河校区E806报告摘要:In signed graphs, each edge is labeled as either positive or negative, capturing the polarity of a relationship. A signed (sub)graph is balanced if the vertices can be divided into two subsets such that negative edges exist...