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19

2024-12

浙大-西湖几何分析讨论班——Uniqueness of Kahler-Ricci Flow Limit

报告人：张州教授（悉尼大学）时间：2024年12月26日（星期四），下午3:00-4:00地点：海纳苑2幢102摘要：we discuss the fundamental/elementary problem on the uniqueness of Kahler-Ricci flow limit. The low regularity consideration is particularly convenient. There is also motivation from more recent study on the singularity type. Accidentally, what we’ve confirmed for the finite and infi...

19

2024-12

辛拓扑与物理讨论班——A Morse A-infinity model for the higher-dimensional Heegaard Floer homology of cotangent fibers

报告人：袁天宇（宁波东方理工大学）时间：2024年12月19日（周四）11:00地点：海纳苑2幢105室摘要：Given a smooth closed n-manifold M and a k-tuple of basepoints in M, we define a Morse-type A∞-algebra called the based multiloop A∞-algebra and show the equivalence with the higher-dimensional Heegaard Floer A∞-algebra of k disjoint cotangent fibers of T*M. 联系人：吴惟为（wwwu9693@zju.edu.cn）

16

2024-12

分析和微分方程讨论班——Singular scaling limits from kinetic to macroscopic models: self-organization system vs Boltzmann

报告人：江宁（武汉大学）时间：2024年12月6日（周五）14:30-15:30地点：海纳苑2幢101摘要：In this talk, we introduces two types of singular scaling limits: self-organization kinetic (SOK) and its limit to self-organization hydrodynamics (SOH), and the more traditional Boltzmann equation and its fluid limits. We will review what are singular scaling limits are, the similarities and differences between ...

16

2024-12

浙大-西湖几何分析讨论班——Quantitative geometric inequalities in $\mathbb R^n$: Power growth other than 2

报告人：张翼（中科院）时间：2024年12月17日（星期二），下午4:00-5:00地点：海纳苑2幢206摘要：In the stability of geometric inequalities, usually one gets a growth with power $2$ as a lower bound for the difference of energy. For example, a remarkable result by Fusco, Maggi, and Pratelli says that, for any set of finite perimeter $E \subset \mathbb{R}^n$ with $|E| = |B|$ and a baryc...

09

2024-12

辛拓扑与物理讨论班——Universal constraints for Hodge integrals

报告人：王新（山东大学）时间：2024年12月9日，14：00地点：海纳苑2幢720摘要：Motivated by Virasoro conjecture for Gromov-Witten invariants, we will propose several new conjectures for hodge integrals with target varieties. Then we will discuss recent results on these conjectures. 联系人：吴惟为（wwwu9693@zju.edu.cn）

15

2024-11

代数几何讨论班——Double star arrangements and the pointed multinet

报告人：刘永强（中国科学技术大学）报告时间：11月26日（周二）下午2点-3点报告地点：数学楼（海纳苑2幢）720室报告摘要: Let A be a hyperplane arrangement in a complex projective space. It is an open question if the degree one cohomology jump loci (with complex coefficients) are determined by the combinatorics of A. By the work of Falk and Yuzvinsky, all the irreducible compon...

14

2024-11

代数几何讨论班——Minimal model program for algebraically integrable foliations and generalized pairs

报告人：韩京俊（复旦大学）报告时间：11月19日（周二）下午4点-5点报告地点：数学楼（海纳苑2幢）720室报告摘要: Algebraically integrable foliations and generalized pairs are two structures that play important roles in modern birational geometry, specifically in the minimal model program. Recently, we showed we may run the minimal model program for both algebraically...

14

2024-11

辛拓扑与物理讨论班—— Lectures on Seiberg-Witten theory

报告人：Hokuto Konno（The University of Tokyo）时间/地点：2024年11月14日（周四）14:00-15:30，海纳苑206 2024年11月15日（周五）14:00-15:30，海纳苑203 2024年11月18日（周二）14:00-15:30，海纳苑820摘要：In this series of talks, I will give the definition of Seiberg-Witten invariants, and explain briefly the gluing formula when we perform connected sums.联系人：吴惟为（wwwu9693...

24

2024-10

辛拓扑与物理讨论班——Kahler compactification of C^n and Reeb dynamics

报告人：周正一（中国科学院数学与系统科学研究院）时间：2024年10月30日14:00-15:30地点：海纳苑2幢206摘要：We will present two results in complex geometry: (1) A Kahler compactification of C^n with a smooth divisor complement must be P^n, which confirms a conjecture of Brenton and Morrow (1978) under the Kahler assumption; (2) Any complete asymptotically conical Calabi-Yau metric on C^3 with a smooth ...

23

2024-10

动力系统与分形几何讨论班——An upper bound for polynomial volume growth or Gelfand–Kirillov dimension of automorphisms of zero entropy

报告人：胡飞（南京大学）报告时间：10月27日（周日）上午10点-11点报告地点：数学楼（海纳苑2幢）101室报告摘要: Let X be a smooth complex projective variety of dimension d and f an automorphism of X.Suppose that the pullback f^* of f on the real Néron–Severi space N^1(X)_R is unipotent and denote the index of the eigenvalue 1 by k+1.We prove an upper bound for the polynomial volume...

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