4-manifolds with infinite cyclic fundamental group

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• Mark Powell (Glasgow)
• Wednesday 12 October 2022, 16:00-17:00
• MR13.

If you have a question about this talk, please contact Oscar Randal-Williams.

I will present classification results for 4-manifolds with boundary and infinite cyclic fundamental group, obtained in joint work with Anthony Conway and with Conway and Lisa Piccirillo. I will describe applications to knotted surfaces in simply connected 4-manifolds, and to investigating the difference between homotopy equivalence and stable homeomorphism. These applications will also draw on work with Patrick Orson and with Conway, Diarmuid Crowley, and Joerg Sixt.

This talk is part of the Differential Geometry and Topology Seminar series.

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