Non-regular Lagrangian concordances between Legendrain knots

Abstract: For a while, it was an open question whether a Lagrangian cobordism with a non-empty positive end can be decomposed into a concatenation of elementary pieces: traces of Legendrian isotopies, isolated standard-unknot births inducing Lagrangian 0-handle attachments, and Legendrian surgeries inducing Lagrangian 1-handle attachments. We answer this question negatively. This is joint work with Georgios Dimitroglou Rizell.

mathematical physicsalgebraic topologydifferential geometryrepresentation theorystatistics theory

Audience: researchers in the topic

Prague-Hradec Kralove seminar Cohomology in algebra, geometry, physics and statistics

Series comments: Virtual coffee starts on Zoom already 15 minutes before the seminar.