# MSCS Seminar Calendar

Tuesday May 23, 2017

**Quantum Topology / Hopf Algebra Seminar**

Khovanov Homology and Lee Homology

Louis Kauffman (UIC)

3:00 PM in SEO 612

Lee homology is a variant of Khovanov homology, using a different Frobenius algebra. We will review how this
structure comes about and show how to calculate Lee homology. We then explain how Lee homology and Khovanov
homology combine to give information about the 4-ball genus of some knots (Rasmussen invariant).

Thursday June 1, 2017

**Thesis defense**

On the Cohomology of the Classifying Spaces of Projective Unitary Groups and Applications

Xing Gu (UIC)

10:00 AM in SEO 1227

I will present the calculation of $H^*(\mathbf{B}PU_n,\mathbb{Z})$ for arbitrary $n$
in degree 1 through 10, and its application to the topological period-index problem.

Friday September 1, 2017

Monday September 11, 2017

Monday September 18, 2017

Friday September 22, 2017

Monday November 6, 2017

Monday November 13, 2017