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23

2024-09

动力系统与分形几何讨论班——Lp estimates of orthogonal projections, dual Furstenberg problem, and discretized sum-product

报告人：刘博辰（南方科技大学）报告时间：9月27日下午3点30分—4点30分报告地点：腾讯会议（会议号：381-841-791；会议密码：240925）报告摘要: L2 estimates of orthogonal projections are classical in geometric measure theory. In this talk we shall discuss about recent progress on Lp estimates. Then we come up with a dual version of the Furstenberg problem and introduce some partial results. We also find th...

20

2024-09

分析与偏微分方程讨论班——Quasiperiodic Systems: Algorithms, Analysis and Applications

报告人：蒋凯（教授，湘潭大学）时间：2024年9月20日上午10:00-11:00地点：海纳苑2幢205室摘要：Quasiperiodic systems, related to irrational numbers, are important space-filling structures without decay nor translational invariance. How to numerically compute these incommensurate systems poses challenges. In this talk, we will present some accurate and efficient methods for quasiperiodic systems based o...

18

2024-09

几何分析讨论班——Effects of some new free boundary conditions on the nonlocal KPP equation with free boundary

报告人：杜一宏（澳大利亚科学院院士，澳大利亚新英格兰大学教授）时间：2024年9月18日，下午4:00-5:00地点：海纳苑2幢206室摘要：I will report some recent results on the nonlocal reaction diffusion equation $u_t-dL[u]=f(u)$ with a KPP type reaction term $f(u)$ over a changing interval $[g(t), h(t)]$, viewed as a model for the spreading of a species with population range $[g(t), h(t)]$ and density $u(t,x)...

12

2024-09

表示论与数论讨论班——Whittaker coefficients of metaplectic Eisenstein series and multiple Dirichlet series

报告人：陈彦泽（University of Alberta)时间：2024年9月19日上午10:00-11:00地点：海纳苑2幢105室摘要：We investigate the Whittaker coefficients of an Eisenstein series on a global metaplectic cover of a semisimple algebraic group induced from the Borel subgroup and establish the relation with Weyl group multiple Dirichlet series, verifying a conjecture of Brubaker-Bump-Friedberg. This is a joint work ...

01

2024-09

浙大-西湖几何分析讨论班——The Monge-Ampere equation in convex polygonal domains

报告人：沈伟明教授（首都师范大学）时间： 2024年9月4日，10:30-11:30地点：海纳苑2幢101摘要： I will talk about the existence and regularity of solutions for the Monge-Ampere equation in convex polygonal domains. This is based on joint works with Genggeng Huang.联系人：江文帅（wsjiang@zju.edu.cn)

28

2024-08

分析与偏微分方程讨论班——Steady Contiguous Vortex-Patch Dipole Solutions of the 2D Incompressible Euler Equation

报告人：童嘉骏（北京大学）时间：2024年8月28日，15:00-16:00地点：海纳苑2幢205室摘要：It is of great mathematical and physical interest to study traveling wave solutions to the 2D incompressible Euler equation in the form of a touching pair of symmetric vortex patches with opposite signs. Such a solution was numerically illustrated by Sadovskii in 1971, but its rigorous existence was left as an open...

21

2024-08

浙大-西湖几何分析讨论班——A rigidity result for ancient Ricci flows

报告人：张旗教授（加利福尼亚大学河滨分校）时间： 2024年9月6日，14:00-15:00地点：海纳苑2幢101摘要： Using the sharp log Sobolev functional (log entropy), we prove a qualitatively sharp rigidity result for ancient Ricci flows without sign condition on the curvatures. The result is also related to the backward limit problem of type II ancient Ricci flows.联系人：江文帅（wsjiang@zju.edu.cn)

21

2024-08

浙大-西湖几何分析讨论班——Volume and Rigidity Properties for the Self-expanding Solutions of Mean Curvature Flows

报告人：Professor Xu Cheng(Universidade Federal Fluminense, Brazil)时间：2024年8月26日，16:00-17:00地点：海纳苑2幢101江文帅老师（wsjiang@zju.edu.cn)江文帅老师（wsjiang@zju.edu.cn)联系人：江文帅（wsjiang@zju.edu.cn)

21

2024-08

浙大-西湖几何分析讨论班——The first eigenvalue of minimal hypersurfaces in the sphere

报告人：Professor Detang Zhou(Universidade Federal Fluminense, Brazil)时间：2024年8月26日，15:00-16:00地点：海纳苑2幢101江文帅老师（wsjiang@zju.edu.cn)江文帅老师（wsjiang@zju.edu.cn)联系人：江文帅（wsjiang@zju.edu.cn)

12

2024-08

代数与表示论讨论班——Two lectures on cluster algebras and representation theory

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