题目：From Bowen's eyes to physical measures in reparameterized linear toral flows with stopping points
报告人：Martin Andersson (Pontificia Universidad Católica de Valparaíso)
时间：2020/5/8 09:00-10:30
线上讲座，Zoom会议信息见下
报告摘要：Consider a constant vector field $X = (1, \alpha)$ on $\mathbb{T}^2$. Multiply $X$ by a smooth function $f$ which is positive everywhere except at two points $p$ and $q$, where it vanishes. Let $\phi^t$ be the flow associated to this vector field. One can show that, for such a flow, the only invariant probability measures are combinations of Dirac measures at the points $p$ and $q$. A natural question arises: what happens to the time averages of $\phi^t(x)$ for a Lebesgue-typical point $x \in \mathbb{T}^2$ as $t$ tends to infinity? In this talk I will give some answers to that question.
This is a joint work with Pierre-Antoine Guihéneuf (Université Paris 6, France).
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邀请人：动力系统与微分方程中心
Zoom会议信息：
会议时间：2020/5/15 09:00-10:30 //us02web.zoom.us/j/3141591122?pwd=aWVGMGI2YkJQOXlEbk5IckRaRER2Zz09
会议 ID：314 159 1122
会议密码：123456