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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: Piecewise linear concordance of knots

Presented by JungHwan Park, MPIM Bonn

9 November 2017 13:00 in CM221

We prove that the null-homotopic class in every 3–manifold other than the 3-sphere contains an infinite family of knots, all topologically concordant, but not piecewise linear concordant to one another. This is joint work with Matthias Nagel, Patrick Orson and Mark Powell.

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