Can you (re)color this map using only four colors? (A famous theorem says you ~~can~~ should be able to.)

Are these two knots the same? (What does that even mean?)

**Monday, October 22nd**

In the *Undergraduate Colloquium Series in the Mathematical Sciences,* speakers connect mathematics and statistics to a variety of disciplines within the college and beyond. Last year, the series saw lectures on tsunamis, virus outbreaks, music, satellite communication, and more. So far this year, we’ve learned about two new trends in statistical analysis: “swarming” and the emerging field of “algebraic statistics.”

This week, the series welcomesÂ Emily Peters (Northwestern), who will explain what “planar algebras” have to say about knot theory and the four-color theorem.

**Lecture:** 4:30 p.m., Cuneo Hall 312

**Meet the Speaker:** 4:00 p.m., Cuneo Hall 312

w/ tea & cookies

**Details:** http://gauss.math.luc.edu/ucms/

Hosted by the Department of Mathematics and Statistics, with support from the CAS special events fund.