Isaac Sundberg : The Khovanov homology of slice disks
To a cobordism between links, Khovanov homology assigns a linear map that is invariant under boundary-preserving isotopy of the cobordism. In this talk, we study those maps arising from surfaces in the 4-ball and apply our findings to existence and uniqueness questions regarding slice disks bounding a given knot. This reflects joint works with Jonah Swann and Kyle Hayden.
- Category: Geometry and Topology
- Duration: 01:14:52
- Date: January 24, 2022 at 3:10 PM
- Tags: seminar, Geometry and Topology Seminar