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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.

Geometry and Topology Seminar: Smooth surfaces in 4-space and me.

Presented by Andrew Lobb, Durham.

4 December 2014 13:00 in CM221

This is a report on joint work with Lukas Lewark (once of Durham, now of Bern). No prior knowledge assumed. I'll talk about the smooth "4-ball genus" of a knot - the history of its study, where "quantum" invariants fit into that story, and the weird and wonderful phenomena that we have recently observed.

Contact CM221. for more information