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28

2021-06

Schwartz's complex hyperbolic surface

Topics on hyperbolic geometryDate: from June 20 to July 20Venue: Lecture Hall, Institute for Advanced Study in Mathematics, No.7 teaching building[ IASM visitors plan to organize an irregular seminar from June 20 to July 20. We will arrange about eight 1.5-hour introductory talks, on recent topics in hyperbolic geometry (and low-dimensional topology). The purpose of this seminar is to enhance...

25

2021-06

Babuska Problem in Composite Materials and its Applications

报告人：李海刚教授北京师范大学数学科学学院报告时间：2021/06/25 14:00-16:00地点：腾讯会议会议链接：https://meeting.tencent.com/s/0KNsIwrOer5X会议 ID：408 379 459 摘要：A long-standing area of materials science research has been the study of electrostatic, magnetic, and elastic fields in composite with densely packed inclusions whose material properties differ from that of the backgr...

24

2021-06

Profinite completion and surface mapping classes

[ IASM visitors plan to organize an irregular seminar from June 20 to July 20. We will arrange about eight 1.5-hour introductory talks, on recent topics in hyperbolic geometry (and low-dimensional topology). The purpose of this seminar is to enhance communication and learn advances in the area. ] Venue: Lecture Hall, Institute for Advanced Study in Mathematics, No.7 teaching buildi...

18

2021-06

数学及其交叉学科前沿论坛第一期——高超声速发动机物理基础和数学问题

17

2021-06

细分基函数的猜想及其证明

报告人：章仁江（浙江工商大学教授）时间：2021年6月21日上午10:00-11:00地点：欧阳楼314摘要：数与形是数学研究的基本对象。在几何设计领域，有一类通过细分操作生成的光滑曲线，由于缺乏细分曲线的解析表达式，它们的解析性质难以分析。章仁江教授最近证明了1986年提出的关于细分基函数的一个猜想。本报告将介绍细分曲线曲面的历史背景，细分基函数的猜想及其证明，并展望对于细分基函数未解决猜想的证明思路。联系人：蔺宏伟（h...

15

2021-06

An iterative algorithm for Dirichlet problem with random conductance

11

2021-06

Model reduction for two-phase flow problems based on the Onsager variational principle

报告人：许现民（中国科学院数学与系统科学研究院）时间：2021年6月11日下午3:00-6:30地点：玉泉校区欧阳纯美楼316室摘要：The Onsager variational principle is a fundamental law for irreversible processes in nonequilibrium statistical physics. It has been used to model many complicated phenomena in soft matter. In this talk, I will give a brief introduction of the principle. In particular, I will sho...

11

2021-06

Complexity of neural networks: classical and quantum

时间：6月11日上午9:30-11:00地点：工商楼200-9报告人：卜凯峰（哈佛大学物理系博士后）摘要：One of the central problems in the study of deep learning theory is to understand complexity of the neural networks. In this talk, we will introduce the topological entropy from dynamic system as a measure of complexity of neural networks. We will also discuss the depth-width trade-offs of neural networks via t...

10

2021-06

Linear Arithmetic Fundamental Lemma and Intersection Numbers for CM Cycles on Lubin-Tate Spaces

Speaker: Qirui Li 李奇芮 (University of Toronto)Time: 3-4 PM, June 10, 2021Venue：Lecture Hall of Institute for Advanced Study in Mathematics, 1st floor of east 7th teaching building, Zhejiang University (Zijingang Campus)Abstract: The central values and derivatives of L-functions are studied in the global Gan-Gross-Prasad conjecture and its arithmetic generalizations. These type of problems ...

10

2021-06

Data Compression in Distributed Learning

报告人：Prof.Ming Yan（Michigan State University）时间：2021年6月10日（周四）13:30-14:30地点：工商楼200-9会议室内容简介：Large-scale machine learning models are trained by parallel stochastic gradient descent algorithms on distributed or decentralized systems. The communications for gradient aggregation and model synchronization become the major obstacles for efficient learning as the number of ...

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