### On the categorification of the quantum Casimir

- Series
- Geometry Topology Seminar
- Time
- Monday, April 26, 2010 - 15:00 for 1 hour (actually 50 minutes)
- Location
- Skiles 269
- Speaker
- A. Beliakova – University of Zurich

In the talk, I will gently introduce the Lauda-Khovanov
2-category, categorifying the
idempotent form of the quantum sl(2). Then I will define a complex,
whose Euler characteristic
is the quantum Casimir. Finally, I will show that this complex
naturally belongs to the center
of the 2-category.
The talk is based on the joint work with Aaron Lauda and Mikhail Khovanov.