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 talk, I will present the basics of the topic and introduce the audience to the Webster-Tanaka calculus in the case where the CR structure is also contact. I will explain how it interacts with Lorentzian conformal geometry especially in connection with mathematical relativity.