Stefan Nemirovski

Legendrian Links, Causality, and the Low Conjecture

Let (Xm+1, g) be a globally hyperbolic spacetime with Cauchy surface diffeomorphic to an open subset of

Cosmic Censorship of Smooth Structures

{mathbb{R}^{m}}

Universal orderability of Legendrian isotopy classes

. The Legendrian Low conjecture formulated by Natário and Tod says that two events

Levi problem and semistable quotients

{x, y in X}

Uniformization and Steinness

are causally related if and only if the Legendrian link of spheres