GT Seminar with Georgios Dimitroglou-Rizell (Uppsala university)
- Date: 27 October 2022, 13:15–14:15
- Location: Ångström Laboratory, room Å64119 and on zoom https://uu-se.zoom.us/j/68210068219
- Type: Seminar
- Lecturer: Georgios Dimitroglou-Rizell (Uppsala university)
- Organiser: Matematiska institutionen
- Contact person: Noémie Legout
Welcome to this seminar held by Georgios Dimitroglou-Rizell (Uppsala university) with title "Positive loops of non-Legendrians, and C^0 contactomorphisms."
Abstract: We show that any n-dimensional non-Legendrian submanifold of a 2n+1-dimensional contact manifold admits a small positive loop that preserves parametrisations, which is generated by a non-negative global contact isotopy. The existence of the positive loop is then used to show that a homeomorphism that arises as the C0-limit of contactomorphisms has the property that the image of a Legendrian submanifold is again a Legendrian, under the assumption that the image is smooth. This is joint work in progress with M. Sullivan.
See upcoming seminars in our seminar series on Geometry and Topology (GT).