Dear all, This week, Friday April 24, Sean Gasiorek (USyd) will give a talk at 4pm via Zoom. Zoom link: https://uni-sydney.zoom.us/j/92037059201 Meeting ID: 920 3705 9201 Title: Magnetic Variants of Billiard Systems Abstract: Mathematical billiards has been a playground for various topics within geometry and dynamical systems for the last 100 years. In this talk, we give a brief review of results and properties of mathematical billiards. If a homogeneous magnetic field is introduced and the billiard ball is seen as a charged particle, the billiard ball is subject to the Lorentz force and trajectories are no longer straight lines. We discuss how the magnetic field and geometry of the billiard table play important roles in the dynamics of magnetic billiards and inverse magnetic billiards, and make comparisons to the standard billiard setting. I hope to see you all online, and please stay around afterwards for the virtual pub. Lachlan