11/13: Professor Pengfei Zhang, “Regular and chaotic billiards”

Please join us for Math Club at its usual time (Wednesday 5:30-6:30) and place (LGRT 1634).  This week, Professor Pengfei Zhang will be speaking on, “Regular and chaotic billiards” (abstract below).  As always, pizza and soda will be provided.
Abstract:
The study of many physical systems can be modeled by billiard system,
for example the electric current flows along a metal wire,
and a light beam reflects along a mirror.
To study the long time behavior of the billiard model,
we can make a mathematical assumption that there is no pocket
and no friction: the billiard will keep moving forever.
In this talk, we will present some basic properties of billiard systems,
and give various examples of regular and chaotic billiard tables.
Then we will describe some recent progress on the study of generalized
lemon billiards.