BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Corinna Ulcigrai (University of Zürich) DTSTART:20200527T140000Z DTEND:20200527T150000Z DTSTAMP:20260404T110825Z UID:Women-in-Math/1 DESCRIPTION:Title: "Slow chaos": understanding dynamics of parabolic systems \nby Corinna Ulcigrai (University of Zürich) as part of Webmeeting - Wom en in Mathematics\n\n\nAbstract\nMany deterministic systems\, in mathemati cal models and in nature\, exhibit "chaotic behaviour": a well known featu re of chaos is the butterfly effect: a small variation of initial conditio ns may lead to drastically different future evolutions. This talk will foc us on parabolic systems\, those for which the "butterfly effect" happens " slowly" (e.g. at polynomial speed). These include many systems coming from physics (such as the Ehrenfest and Novikov models of metals)\, (smooth) f lows on surfaces and billiards in (rational) polygons. We will survey some of the mathematical characterization of chaotic features and some of the mechanisms for "slow" chaos in these systems\, including recent work inspi red by the ideas of Marina Ratner.\n\nZoom information at http://www.dina micas.im.ufrj.br/celebrating-women-in-math/\n LOCATION:https://stable.researchseminars.org/talk/Women-in-Math/1/ END:VEVENT END:VCALENDAR