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02

2025-01

浙大-西湖几何分析讨论班——Construction of Morse Flow Lines between Self-expanders

报告人：陈乐天（University of Tennessee, Knoxville）时间：2025年1月6日（星期一），下午4:00-5:00地点：海纳苑2幢203摘要：One of the central questions in the study of mean curvature flow (MCF) is to determine whether one can flow past singularities. For asymptotically conical singularities, self-expanders model the potential continuations of MCFs past singularities. However, due to ...

02

2025-01

Problems related to pointwise convergence for Schrodinger groups

Speaker: 邓清泉（华中师范大学）Time: 2025-01-07，10:20-11:20Location: 海纳苑2幢205Abstract: In this work, we focus on the maximal estimates and pointwise convergence for Schrodinger group $e^{itH}$ with potentials in dimension one, where $H=-\Delta+V$. Under some assumptions on potential V, by using the distorted Fourier transform, as well as the function spaces associat...

02

2025-01

Some progress on dispersive estimates of higher order elliptic operator

Speaker: 尧小华（华中师范大学）Time: 2025-01-07，9:15-10:15Location: 海纳苑2幢205Abstract: The dispersive estimates of Schr\”odinger operators are interesting topics, which play fundamental roles in the wellposedness of nonlinear dispersive equations and the stability of solitary waves. In this talk, I will recall some classical works on Kato smoothing, Strichartz ...

31

2024-12

Mean curvature flow and applications

23

2024-12

Fast high-order singular quadrature and PDE solvers in complex geometries

20

2024-12

Permutation groups, symmetry breaking and probability

报告人：黄弘毅博士（英国布里斯托大学）时间：2024年12月24日 10:30-11:30地点：海纳苑2幢820摘要: There are two natural ways to break all the non-trivial symmetries of a graph: pointwise and setwise, which involve the base size and the distinguishing number of a permutation group, respectively. These two invariants have been investigated for many decades, finding a wide range of applications. In th...

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

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...

15

2024-12

Diophantine approximation and the Riemann zeta function

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