搜索
导航
学术报告——微分几何讨论班（2025秋第5讲） Instability of naked singularities: Exterior & Interior黎俊彬 教授（中山大学）时间：2025年12月18日 9:00-10:00地点：沙河主E402摘要：We will first review some exterior results in the instability of naked singularities. Then we present a new approach to proving instability under interior perturbations, and its implications in the weak cosmic censorship con...
数学科学学院学术报告 Cyclic stochastic gradient method孙聪 北京邮电大学报告时间：2025年12月19日 星期五 下午16：00-17：00报告地点：沙河校区E806报告摘要： The cyclic stepsize update strategy is proposed for stochastic gradient method. The stepsize is updated cyclicly, where the first two stepsizes use the approxiamted Cauchy steps and the rest apply the fixed stepsize. The step-ahead BB stepsize ...
数学科学学院学术报告 Stable phase retrieval in shift-invariant spaces成诚（中山大学） 报告时间：2025年12月12日 17:00-18:00报告地点：沙河主E806 报告摘要：In finite-dimensional spaces, frames that allow phase retrieval are stable, with a finite stability constant; yet when one considers nested hierarchies of finite-dimensional approximation spaces these constants tend to infinity as the dimensio...
基础数学系学术报告Unitary dual problem for p-adic classical groups:the good parity case陈睿（浙江大学）报告时间：16：00-17：00，2025-12-11（星期四）报告地点：沙河校区主楼E802 内容简介：Classifying irreducible unitary representations is one of the most important problems in representation theory of reductive groups. In this talk, we will discuss the recent breakthrough on this problem by Atobe-M...
基础数学系学术报告 --微分几何讨论班（2025年秋第4讲）Some configuration results for area-minimizing cones张永胜 教授（首都师范大学） 时间：2025年12月11日 15:00-16:30地点：沙河主E806摘要：Blowups at interior of area-minimizing currents give area-minimizing cones, so to search for area-minimizing cones is an important subject in geometric measure theory. Recently, we discovered very general config...
学术报告--微分几何讨论班（2025秋第2讲） On the symplectic mean curvature flows韩小利 教授（清华大学） 时间：2025年12月10日 14:35-15:35地点：沙河主E806 摘要：This talk provides a survey of symplectic mean curvature flow, covering its monotonicity formula, the structure of tangent cones, and a classification of singularities. Special attention is given to Type II singularities, with...
