Legendrian links and déjà vu moments

Abstract: Legendrian links in the space of null geodesics of a spacetime can be used to detect "déjà vu moments", i.e. different instances at which an observer receives the same light ray. In the talk, I'll discuss the relevant class of Legendrian links and some ensuing open problems.

differential geometrydynamical systemsgeometric topologysymplectic geometryspectral theory

Audience: researchers in the topic

Geometry and Dynamics seminar

Series comments: On the week of the seminar, an announcement with the Zoom link is mailed to the seminar mailing list. To receive these e-mails, please sign up by writing to Lev Buhovsky (http://www.math.tau.ac.il/~levbuh/).