Join us at **4:00 p.m. **on** Monday, October 26** in** Galileo 201** for Math Monday! Our very own Prof. Ellen Veomett will be talking about *Coloring Geometrically Defined Graphs*. The talk will be accessible to students of all levels…and (as usual) there will be refreshments!

Abstract: This talk will take us through a journey of graph coloring. We’ll start with some basic definitions and the well-known four and five color theorems. We’ll also discuss the fascinating question of the chromatic number of the plane. Finally, we’ll talk about new results on box graphs, which are graphs defined using blocks and their intersections. This talk will be extremely accessible, while at the same time including some modern research topics.

Questions? Contact Prof. Michael Nathanson at man6@stmarys-ca.edu.