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19

2020-06

数学所讲座| Common preperiodic points and its application

浙江大学数学科学学院数学所讲座题目: Common preperiodic points and its application报告人: 叶和溪研究员 (浙江大学数学学院)摘要: Preperiodic points play an important role in the study of dynamics. In this talk, we discuss the number of common preperiodic points of two rational functions on $\P^1$. As an application, we use it to count the number of torsion points on a family of gen...

26

2020-05

复向量丛上的几何分析

报告题目：复向量丛上的几何分析报告人：张希教授（中国科学技术大学）时间：2020年6月12日（星期五）下午2:00-3:00地点：钉钉群(群号：34910802) 摘要：纤维丛是现代微分几何的重要概念，它将许多重要的数学和物理对象统一起来。示性类理论则是纤维丛研究中的重点，这方面Hopf、Stiefel、Whitney、Pontrjagin、陈省身和吴文俊等做出了开拓性的工作。上世纪四十年代陈省身在复向量丛上引入“陈省身示性类”（简称...

25

2020-05

数学所讲座| Quantum K-Theory and 3d TQFT

07

2020-01

求是数学前沿论坛 | 机器学习的数学理论（更新）

27

2019-12

数论及表示论|Some old and new results about singular moduli

Title: Some old and new results about singular moduliSpeaker： Prof. Dr. Yingkun Li (Technische Universität Darmstadt)Time：14:30-16:00pm, Jan 6th, 2020(Monday) Location：200-9，Sir Run Run Shaw Business Administration buildingAbstract: The values of the modular j-invariant at CM points are calledsingular moduli. They have been known to be algebraic integers since the time of...

27

2019-12

Bessel Descents and Branching Problems

Title: Bessel Descents and Branching Problems报告人：张磊博士（新加坡国立大学）时间：2019年12月27日下午4点地点：浙江大学紫金港校区东七数学高等研究院报告厅Abstract: In this talk, we will discuss the theory of automorphic descents of Bessel-Fourier coefficients of classical groups of Hermitian type and its relation to the automorphic version of the branching problem and the reciprocal branchin...

25

2019-12

数据科学| Stochastic Optimization for AUC Maximization in Machine Learning

时间：12月26日 16:00-17:00报告人：Yiming Ying教授（纽约州立大学奥尔巴尼分校）地点：玉泉工商楼200-9Stochastic optimization algorithms such as stochastic gradient descent (SGD) update the model sequentially with cheap per-iteration costs, making them amenable for large-scale streaming data analysis. However, most of the existing studies focus on the classification accuracy which can not be dir...

24

2019-12

Biostatistics-Scalable Statistical Inference for Massive Health Data: Challenges and Opportunities

题目：Scalable Statistical Inference for Massive Health Data: Challenges and Opportunities报告人：林希虹哈佛大学时间：2020.01.03(周五)上午10:30-11:30地点：紫金港校区管理学院行政楼14楼1417报告厅摘要： Massive data from genome, exposome, and phenome are becoming available at a rapidly increasing rate with no apparent end in sight. Examples include Whole Genome Sequencing data, smartphone data,...

24

2019-12

“代数与表示论” 学术报告

题目：Mathieu Subspace: a Generalization of Ideals of Associative Algebras.报告人：Professor Wenhua Zhao (Illinois State University)时间：2019年12月30日下午4点开始地点：浙大玉泉校区数学科学学院200-9报告厅Abstract: The notion of Mathieu subspaces was introduced by the speaker in 2009, which can be viewed as a natural but highly non-trivial generalization of ...

16

2019-12

高等数学研究所学术报告|Random Matrix Theory and Tracy-Widom Law

题目：Random Matrix Theory and Tracy-Widom Law报告人：苏中根教授（浙江大学数学学院统计系）时间：2019年12月27日（星期五）上午10：30-11：30地点：玉泉校区工商楼四楼报告厅摘要：The study of random matrix theory has a long and rich history, and has become one of most interesting links in apparently distinct disciplines like analysis, algebra, probability, statistics and physics. There have...

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