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27

2020-09

An extension of Calderon-Zygmund type singular integral

报告人：酒全森教授（首都师范大学）时间：2020年10月6日（星期二）下午4:00-5:00地点：腾讯会议会议 ID：835 721 850会议密码：8795 摘要：In this talk,we will present a kind of singular integral which can be viewed as an extension of the classical Calderon-Zygmund type singular integral. We establish an estimate of the singular integral in the $L^q$ space for $1<q<\infty$. In ...

25

2020-09

A class of bound preserving and energy dissipative schemes for solving porous medium equations

报告人: Dr. Yiqi Gu, Department of Mathematics, National University of Singapore 时间：2020年9月28日下午6:30-7:30 地点：工商楼105 摘要: We have developed a class of bound preserving and energy dissipative schemes for the porous medium equation. The schemes are based on a positivity preserving approach and a perturbation technique, and are shown to be uniquely solvable, bound p...

22

2020-09

One-Bit Low-Tubal-Rank Tensor Recovery

题目：One-Bit Low-Tubal-Rank Tensor Recovery报告人：王建军教授（西南大学）时间：2020年9月30日（星期三）下午2：30-3：30地点：腾讯会议会议ID：311 282 795会议密码：310027摘要：This paper focuses on the recovery of low-tubal-rank tensors from binary measurements based on tensor-tensor product (or t-product) and tensor Singular Value Decomposition (t-SVD). Two types of recovery models are considered, ...

21

2020-09

相位恢复：理论、模型与算法

报告题目：相位恢复: 理论、模型与算法报告人：许志强（中国科学院数学与系统科学研究院）报告时间：2020年9月22日14:30报告地点：腾讯会议 ID：374 236 017内容简介：相位恢复及矩阵恢复因在多个应用问题中被提出而成为目前应用数学和计算数学研究的热点问题. 而以下三个问题则在纯数学领域中被提出：非奇异双线性形式、复射影空间在欧式空间中的嵌入及代数簇的维数.这些问题在数学中亦有着悠久的历史. 如非奇异双线性形式的第一...

21

2020-09

数学所讲座| Restriction of Eigenfunctions to Submanifolds

题目: Restriction of Eigenfunctions to Submanifolds报告人：席亚昆博士（浙江大学数学学院）时间：2020年9月25日上午10:30-11:30地点：浙江大学玉泉校区欧阳楼316Abstract: It is an area of interest in both number theory and harmonic analysis to study various quantitative behaviors of eigenfunctions restricted to certain smooth submanifolds (curves), which include the restricted L^p norms, (generalized) ...

17

2020-09

Information Based Complexity for High Dimensional Statistical Models

29

2020-08

Allen-Cahn approximation to minimal hypersurfaces

报告人：王克磊教授（武汉大学）时间：2020年9月2日（星期三）下午2:00-3:00地点：腾讯会议会议ID：532 525 289 会议密码：8795 摘要：In this talk I will survey the min-max construction of minimal hypersurfaces, with an emphasis on the appraoch using Allen-Cahn approximation. I will also discuss the multiplicity one conjecture of Marques and Neves, and the role of transition layer regular...

27

2020-08

Nonlinear cointegrating power function regression with endogeneity

报告人：Prof. Wang Qiying（The University of Sydney）时间：2020年9月1日（星期二）下午3：00开始地点：钉钉群（群号：31935074）摘要：This paper develops an asymptotic theory for nonlinear cointegrating power function regression. The framework extends earlier work on the deterministic trend case and allows for both endogeneity and heteroskedasticity, which makes the models and infere...

25

2020-08

Tilting modules, dominant dimensions and Brauer-Schur-Weyl duality

报告人：胡峻教授报告时间：2020年8月31日上午8:50开始报告地点：浙大玉泉校区欧阳楼316摘要： In this talk, we first discuss a criterion for the validity of the double centralizer property with respect to a tilting module over a standardly stratified algebra $A$. We then apply the criterion to the case when $A$ is quasi-hereditary with a simple preserving duality. We affirmatively answer a questi...

24

2020-08

同调与对偶函子

报告人：吴泉水（复旦大学）时间：2020年8月31号10点-11点地点：欧阳楼316摘要：报告将从Ext和Tor函子诱导的对偶出发，介绍Van den Bergh对偶、Skew Calabi-Yau代数及其之间的关系。联系人：吴志祥老师wzx@zju.edu.cn

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