讨论班

学术会议

学术报告

讨论班

运筹学与控制论讨论班辛拓扑与物理讨论班几何分析讨论班动力系统讨论班分析和微分方程讨论班计算与应用讨论班表示论与数论讨论班概率统计讨论班其他

讨论班

讨论班首页 >

2024-07

计算与应用讨论班——Fast integral equation methods and the DMK framework

报告人：蒋世东，Flatiron Insitute时间：2024年7月2日10:00-11:00 地点：浙江大学紫金港校区基础交叉研究院（筹）101会议室摘要：In this talk, we will first present an overview of fast integral equation methods (FIEMs). Fast algorithms, such as the fast multipole methods and their descendants, have made profound impacts on many areas of scientific computing. Boundary integral ...

2024-06

计算与应用讨论班——Highly efficient and accurate algorithms for constrained PDEs

报告人：程青（同济大学）时间：7月1日，14:00-16:00地点：海纳苑2幢206摘要：In the talk, I will introduce a new approach to construct efficient and accurate structure-preserving schemes for a class of constrained PDEs. To be more specific, I will introduce how to construct positivity/bound-preserving, length-preserving, energy-dissipative schemes for a large class of PDEs. I will establish stability ...

2024-06

动力系统讨论班——Positivity of the Lyapunov exponent for potentials generated by Hyperbolic Transformations

报告人：张正鹤(University of California, Riverside)时间：2024年6月24日（周一），上午10:00-11:00地点：海纳苑2幢202Abstract: I will introduce a recent work in showing positivity of the Lyapunov exponent for Schrodinger operators with potentials generated by hyperbolic dynamics. Specifically, we showed that if the base dynamics is a subshift of finite type with an ergodic measure adm...

2024-06

计算与应用讨论班——Delay-dependent elliptic reconstruction and optimal $L^\infty(L^2)$ a posteriori error estimates for fully discrete delay parabolic problems

报告人：王晚生（上海师范大学）时间：2024年6月14日15:00-17:00地点：海纳苑2幢202摘要：We derive optimal order a posteriori error estimates for fully discrete approximations of linear parabolic delay differential equations (PDDEs), in the L∞(L2)-norm. For the discretization in time we use Backward Euler and Crank-Nicolson methods, while for the space discretization we use standard conforming finite ...

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...

2024-06

计算与应用讨论班——Solving long-time nonlinear Schrodinger equation by a class of oscillation-relaxation integrators

报告人：王斌（西安交通大学）时间：2024年6月20日14:00地点：海纳苑2幢205摘要：In this talk, we are concerned with numerical integrators for the long time nonlinear Schrodinger equation. We propose a novel class of oscillation-relaxation integrators and study its convergence and energy conservation. The proposed integrators are shown to have improved uniform accuracy and nice near energy conservation...

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...

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...

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...

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...

每页 10 记录总共 366 记录
第一页 <<上一页下一页>> 尾页
页码 15/37 跳转到