Highly connected manifolds in dimensions larger than 248
- 👤 Speaker: Jeremy Hahn, MIT
- 📅 Date & Time: Wednesday 26 February 2020, 16:00 - 17:00
- 📍 Venue: MR13
Abstract
A simply connected, smooth (2n)-manifold is said to be highly connected if it has integral homology only in dimensions 0,n, and 2n. I will survey the problem of classifying highly connected manifolds up to diffeomorphism, as well as calculating their mapping class groups. I will describe work, joint with Robert Burklund and Andrew Senger, that completes the classification in all but finitely many dimensions. Combining our results with theorems of Kreck, Galatius, Randal-Williams, and Krannich gives new mapping class group computations.
Series This talk is part of the Differential Geometry and Topology Seminar series.
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Jeremy Hahn, MIT
Wednesday 26 February 2020, 16:00-17:00