Seminarium "The Trans-Carpathian Seminar on Geometry & Physics"

In its simplest form, CR geometry can be understood as the study of real hypersurfaces in complex space. In this second lecture, I will introduce the audience to more geometrical aspects of contact CR geometry including the Webster-Tanaka calculus and possibly its tractor calculus. Time permitting, I will explain how it interacts with Lorentzian conformal geometry especially in connection with mathematical relativity.