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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.

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