# A night of mathematics and Jazz

- Time
- Nov 26, 18:00-22:00, 2017
- Place
- Math -101
- Webpage
- A night of mathematics and Jazz

**All faculty and students are cordially invited.**

#### Program

##### 18:00 Undergraduate math club

*Barak Weiss*, Tel Aviv University

**The illumination problem**

The following elementary problem in geometry is still open: given a polygon in the plane, say that points and in *see each other* if there is a billiard path from to . Is there a polygon in which infinitely many pairs of points do not see each other?

Such problems turn out to be easy to state but very difficult to solve. I will explain this and related questions in greater detail, and describe some recent progress which relies on well-known work of Eskin and Mirzakhani (part of the late Maryam Mirzakhani’s Field medal citation).

##### 19:00 A **Jazz show** by *Tsachik and the perverse sheaves*

Ehud Ettun on bass

Haruka Yabuno on Piano

*Tsachik Gelander* on drums