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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: Cusp regions associated to parabolic screw motions

Presented by John Parker, Durham,

8 June 2017 11:00 in CM221

We consider the geometry of hyperbolic 4-manifolds which have an end modelled on a parabolic screw motion whose rotation angle is an irrational multiple of pi. There is a very close relationship between the shape of the associated cusp region (where the manifold looks like a product) and the Diophantine properties of the rotation angle. This work is based on earlier results of Erlandsson and Zakeri and of Susskind.

Contact mark.a.powell@durham.ac.uk or andrew.lobb@durham.ac.uk or wilhelm.klingenberg@durham.ac.uk for more information