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12

2024-06

浙大几何分析微型研讨会

06

2024-06

计算与应用讨论班——Advanced Numerical Methodologies for Fluid-Structure Interaction (FSI) Problems

报告人：Pengtao Sun（University of Nevada）时间：2024年6月14日10:00地点：海纳苑2幢101摘要：In this talk, I will present my resent research work on fluid-structure interaction (FSI) problems. The interaction of a flexible structure with a flowing fluid in which it is submersed or by which it is surrounded gives rise to a rich variety of physical phenomena with applications in many fi...

14

2024-06

概率统计研讨会 (2024-6-14)

05

2024-06

概率统计讨论班——金融机器学习模型的风险管理 Risk management for machine learning models in finance

报告人：陈当行（助理教授，昆山杜克大学）时间：6月11日下午2：00-3：00地点：海纳苑2幢102摘要：近年来，机器学习模型在许多领域取得了巨大成功。尽管与传统的数学统计模型相比，机器学习模型在精度上取得了极大提高，然而对于诸如金融等高风险领域，精度并不是唯一的考量标准。模型的透明性、可解释性、合理性以及公平性对于金融监管也至关重要。如果无法满足监管需求，即便是高精度的机器学习模型也难以被业界广泛使用。在这个...

03

2024-06

分析和微分方程讨论班——The dichotomy of Nikodym sets and local smoothing estimates for wave equations

报告人：陈铭峰（威斯康星麦迪逊分校）时间：2024年6月12日，16:10-17:10地点：海纳苑2幢202摘要：In this talk, I will talk about maximal operator in the plane. After reviewing some classical results of Bourgain circular maximal theorem and Sogge’s cinematic curvature, I will focus on our result. We classify planar maximal functions: We find all the curves such that Nikodym sets exist, thus the maximal...

03

2024-06

辛拓扑与物理讨论班——Global Kuranishi Charts for Moduli Spaces of Pseudoholomorphic Bordered Riemann Surfaces

报告人：Sam Bardwell-Evans（Institute for Basic Science）时间：2024年6月4日，14:00-16:00地点：海纳苑2幢106室摘要：Moduli spaces of pseudoholomorphic curves, discs, and other bordered Riemann surfaces have been central to symplectic geometry since the works of Gromov and Floer in the 1980s. These moduli spaces are in general highly singular and require some regularization to be useful. One of the m...

28

2024-05

School Colloquium——Subgroup structure and applications

27

2024-05

计算与应用讨论班——On Variational and Hemivariational Inequalities in Fluid Mechanics

报告人：Professor Weimin Han, Department of Mathematics,University of Iowa时间：6月4日10:30-12:00地点：海纳苑2幢102摘要：Variational inequalities and hemivariational inequalities arise naturally in fluid mechanics for problems with nonsmooth boundary conditions or for non-Newtonian flows. In this talk, we review early works and present recent/new results on the inequality problems. ...

27

2024-05

分析和微分方程讨论班——A Hormander-type oscillatory integral operator estimate: a bound beyond Stein-Tomas

报告人：甘盛文（助理教授，威斯康辛大学麦迪逊分校）时间：2024年6月12日，14:00-16:00地点：海纳苑2幢202摘要：In this talk, I will introduce the Hormander-type oscillatory integral operator. A classical result of Hormander and Stein gives the (L^\infty, L^p) estimate when p=2(n+1)/(n-1). By adding some additional condition, we prove a (L^\infty, L^q) estimate for some q<2(n+1)/(n-1).联系人：席亚昆...

11

2024-06

概率统计讨论班——Analyze Time-to-event Data Using Survival Mixed Membership Blockmodel 生存混合成员模型分析社交网络中事件发生时间

报告人：宋方达（助理教授，香港中文大学（深圳）数据科学学院）时间：6月11日下午4：00-5：00地点：海纳苑2幢102摘要：Whenever we send a message via a channel such as E-mail, Facebook, WhatsApp, WeChat, or LinkedIn, we care about the response rate—the probability that our message will receive a response—and the response time—how long it will take to receive a reply. Recent studies have made considerable...

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