Stable diffeomorphisms of 4-manifolds

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• Mark Powell, Durham
• Wednesday 23 May 2018, 16:00-17:00
• MR13.

If you have a question about this talk, please contact Ivan Smith.

Two four-dimensional manifolds are said to be CP2 - stably diffeomorphic if one can take connected sums of either manifold with copies the complex projective plane, with either orientation, after which they become diffeomorphic. I will explain how to classify manifolds up to this relation. I may also discuss the closely related question of stabilisations with copies of S2 x S2.

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

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