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21

2023-09

Endomorphism algebras of projective-injective modules

学术报告题目：Endomorphism algebras of projective-injective modules报告人：胡峻教授时间：2023年3月16日星期四下午4:00地点：浙大紫金港校区海纳苑2幢101摘要：To determine if the endomorphism ring of a projective-injective module is symmetric is of wide interest in representation theory, ring theory and algebraic Lie theory. In this talk we show that for any projective-injective module over a large cl...

21

2023-09

A family of Monge-Ampère type operators converging to sigma_k, and their Minkowski problems

21

2023-09

A Nakai-Moishezon type criterion for supercritical deformed Hermitian-Yang-Mills equation

Title: A Nakai-Moishezon type criterion for supercritical deformed Hermitian-Yang-Mills equationAbstract: The deformed Hermitian-Yang-Mills equation is a fully nonlinear elliptic PDE on Kahler manifolds, which can be regarded as the complex analogue of the Lagrangian equation. In this talk, I will present a Nakai-Moishezon type criterion for supercritical deformed Hermitian-Yang-Mills equation, wh...

20

2023-09

Regularity of free boundary for the Monge-Ampere obstacle problem

20

2023-09

Theory of Functional PCA for noisy and discretely observed data

报告题目：Theory of Functional PCA for noisy and discretely observed data报告人：姚方教授（北京大学）时间：2023年3月24日（周五）下午3:00开始地点：腾讯会议会议ID：545-515-268摘要：Functional data analysis is an important research field in statistics which treats data as random functions drawn from some infinite-dimensional functional space, and functional principal component analysis (FP...

20

2023-09

D-finiteness, Rationality, and Height

报告题目： D-finiteness, Rationality, and Height报告人：陈绍示教授（中国科学院数学与系统科学研究院）报告时间：2023年5月1日（星期一） 16:00-17:00报告地点：紫金港校区海纳苑2幢205教室摘要：D-finite functions are solutions of homogeneous linear differential equations with rational function coefficients. This is an important class of special functions since it appears ubiquitously in algebra...

20

2023-09

Estimation of Common Factors for Microstructure Noise and Efficient Price in a High-frequency Dual Factor Model

报告题目：Estimation of Common Factors for Microstructure Noise and Efficient Price in a High-frequency Dual Factor Model报告人：陈佳教授（The University of York, UK）时间：2023年04月07日（星期五）上午13:30-地点：紫金港校区海纳苑2幢205教室摘要：We develop the Double Principal Component Analysis (DPCA) based on a dual factor structure for high-frequency intraday returns contaminated by micros...

20

2023-09

D-modules, motivic integrals and hypersurface singularities

代数几何与辛几何系列学术报告Title: D-modules, motivic integrals and hypersurface singularities 报告人：吴磊（浙江大学数学学院长聘副教授）时间：2023年4月6日星期四下午1:45-2:45地点：浙大紫金港校区海纳苑2幢210Abstract:This talk is an invitation to the study of monodromy conjecture for hypersurfaces in complex affine spaces. I will recall two different ways to understand singularities of hypersurfac...

20

2023-09

Mapping class groups in symplectic geometry: from packing problem to moduli spaces

代数几何与辛几何系列学术报告Title: Mapping class groups in symplectic geometry: from packing problem to moduli spaces报告人：吴惟为（浙江大学数学学院长聘副教授）时间：2023年4月6日星期四下午2:45-3:45地点：浙大紫金港校区海纳苑2幢210Abstract: Symplectic packing problem is one of the central theme in symplectic geometry, after Gromov’s celebrating non-squeezing theorem. Many works have ...

20

2023-09

Isoperimetry for asymptotically flat 3-manifolds with positive ADM mass

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