动力系统讨论班

讨论班

学术会议

学术报告

讨论班

运筹学与控制论讨论班辛拓扑与物理讨论班几何分析讨论班动力系统讨论班分析和微分方程讨论班计算与应用讨论班表示论与数论讨论班概率统计讨论班其他

动力系统讨论班

动力系统讨论班首页 >

01

2025-09

动力系统与分形几何讨论班

报告人：曹仕平博士（香港中文大学）报告时间：9月4日下午16:00—17:00报告地点：海纳苑2幢205室摘要：Brownian motions on generalized Sierpinski carpets were constructed by Barlow and Bass as scaling limits of constant time-changed reflected Brownian motions on Euclidean domains approximating the carpet. In this talk, we show that the time scaling can be chosen in the form $\lambda^n$ for some $\lambda&g...

31

2025-07

动力系统讨论班——On the Birkhoff conjecture for nearly centrally symmetric domains

报告人：Vadim Kaloshin （奥地利科技学院）时间：2025年7月31日，10:30-12:00地点：海纳苑2幢203室摘要: In this talk, I will discuss a recent advance on Birkhoff conjecture, namely a proof that : an integrable, nearly centrally symmetric Birkhoff billiard table is necessarily an ellipse. This is done by combining recent breakthroughs by Bialy-Mironov (who prove the conjecture for centrally symmetr...

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...

16

2024-10

动力系统与分形几何讨论班——Lower Assouad-type dimensions: old and new

报告人：陈海鹏（深圳技术大学）报告时间：10月25日（周五）下午3点30分—4点30分报告地点：数学楼（海纳苑2幢）203室报告摘要: As natural duals to the well-studied Assouad-type dimensions, the lower Assouad-type dimensions form a family of fractal dimensions that describe and quantify the coarse aspects of a set. In this talk, we will review their definitions and properties, and present ong...

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...

02

2024-07

动力系统与分形几何讨论班——Harmonic Analysis of Mandelbrot Cascades

报告人：邱彦奇（国科大杭州高等研究院）时间：2024年7月2日 10:00-11:00地点：海纳苑2幢106室摘要：We will talk about the asymptotic decay of the Fourier coefficients of the Mandelbrot canonical cascade measure and more general cascade measures. Our method is to put the analysis of these Fourier series into the framework of vector-valued martingales, as well as to apply celebrated asymptotics of small ...

17

2024-06

动力系统讨论班——Positivity of the Lyapunov exponent for potentials generated by Hyperbolic Transformations

报告人：张正鹤(University of California, Riverside)时间：2024年6月24日（周一），上午10:00-11:00地点：海纳苑2幢202Abstract: I will introduce a recent work in showing positivity of the Lyapunov exponent for Schrodinger operators with potentials generated by hyperbolic dynamics. Specifically, we showed that if the base dynamics is a subshift of finite type with an ergodic measure adm...

11

2024-05

动力系统讨论班——A regularization theorem for bounded-degree self-maps

报告人：杨舍(北京大学)时间：2024年5月16日（星期四），下午4:00-5:00地点：海纳苑2幢102摘要：We prove that over an algebraically closed field of arbitrary characteristic, a bounded-degree self-map of an irreducible projective variety can be regularized. That is to say, there exists another projective variety birational to the original one such that the bounded-degree self-map become...

11

2024-05

动力系统讨论班——Likely Intersections for Forward Orbits of Curves

报告人：Jit Wu Yap (哈佛大学)时间：2024 年5 月16 日（星期四），下午3:00-4:00地点：海纳苑2 幢102摘要：Let $f,g$ be two polynomials of degree $d > 1$ and let $\varphi = (f,g)$ be the endomorphism acting on $P^1 x P^1$. Given two curves $C$ and $C'$, we expect that the forward iterates of $C...

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...

每页 10 记录总共 14 记录
第一页 <<上一页下一页>> 尾页
页码 1/2 跳转到

Copyright © 2023 浙江大学数学科学学院版权所有

浙ICP备05074421号

技术支持：寸草心科技管理登录

您是第 1000 位访问者