The spring 2016 iteration of the **Ellis R. Kolchin Memorial Lecture** will be delivered by **Prof. Raphaël Rouquier **(University of California, Los Angeles) on Tuesday, April 26rd.** Prof. Raphaël Rouquier** will give the following lecture:

“Algebra in the fourth dimension”

I will discuss higher representation theory, where symmetries of symmetries

appear. This provides a new paradigm for (geometric) representation theory,

and should express features of topology in dimension 4.

** Tuesday, April 26, 2016 at 3 pm**

**417 Mathematics Hall**

Tea will be served at 4:00 pm in 508 Mathematics Hall

2990 Broadway at 117th Street