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  1. Topology and Dynamics
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  5. 2025

Plenary and Semi-Plenary Talks

Icon: calendar Semi-plenary A: Van Cyr | 2025 Mar 08 from 09:25AM to 10:10AM (Eastern Time (US & Canada)) | Forbes 1022

Subevent of Semi-plenary Talks

‟Chaotic almost minimal actions” by Van Cyr <van.cyr@bucknell.edu>, Bucknell

Abstract:

The joint action of $x\mapsto2x$ (mod 1) and $x\mapsto3x$ (mod 1) has a number of remarkable properties. Among them is that ever joint orbit is either finite or dense. Of course any minimal system has that property, but the x2,x3 system is special because it has a dense set of finite orbits that intermingle with dense orbits. In joint work with B. Kra and S. Schmieding, we abstract this property to what we call a chaotic almost minimal (CAM) system. I this talk I will discuss some properties of CAM systems, showing their similarities to and differences from the x2,x3 system.