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Corks for exotic diffeomorphisms
Geometry/Topology| Speaker: | Terrin Warren, Cal Poly |
| Related Webpage: | https://sites.google.com/view/terrinwarren/home |
| Location: | 2112 MSB |
| Start time: | Tue, Mar 4 2025, 2:10PM |
In dimension four, there exist manifolds which are h-cobordant but not diffeomorphic. Using these cobordisms, it is known that exotic smooth structures on simply connected 4-manifolds can be localized to certain contractible submanifolds called corks. In this talk, I will discuss an analogous localization result for exotic diffeomorphisms. This is based on joint work with Slava Krushkal, Anubhav Mukherjee, and Mark Powell.