Gandalf (Pure Maths Student Seminar): Khovanov Homology and the Universal Tangle Category
5 December 2012 16:00 in CM221
Khovanov homology is an invariant of knots that 'categorifies' the Jones polynomial. In this talk, I will give a basic introduction to Khovanov homology for knots, and then show that by staying in the topological world of cobordisms we can obtain a chain complex that serves as an invariant of tangles, and specialises to Khovanov homology in the case of knots and links.
Gandalf is the pure maths student seminar. Gandalf stands for the Geometry AND ALgebra Forum. It is run by and for pure postgraduates, but welcomes anyone who is interested in coming along.
Content from previous talks is available at the gandalf seminar home page.