- Series
- Geometry Topology Student Seminar
- Time
- Wednesday, September 10, 2025 - 2:00pm for 1 hour (actually 50 minutes)
- Location
- Skiles 006
- Speaker
- Tom Rodewald – Georgia Tech
- Organizer
- Alex Joshua Eldridge
In order to distinguish Legendrians with the same classical invariants, Chekanov and Eliashberg separately defined the Chekanov-Eliashberg DGA. Chekanov further defined a linearized version. Ekholm, Honda, and Kalman showed an exact Lagrangian cobordism between two Legendrians induces a DGA map on their respective DGAs. We show how to adapt this map to the linearized version. Time permitting, we will use this map to obstruct invertible concordances between negative twist knots. This is joint work with Sierra Knavel.