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Department of Mathematical Sciences

Seminar Archives

On this page you can find information about seminars in this and previous academic years, where available on the database.

Gandalf (Pure Maths Student Seminar): Khovanov Homology and the Universal Tangle Category

Presented by Jonathan Grant, Durham

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.

Contact or for more information

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.