Tight and overtwisted contact structures
Published: Apr 17, 2025
Last Updated: Apr 17, 2025
Authors:John B. Etnyre
Abstract
The tight versus overtwisted dichotomy has been an essential organizing principle and driving force in 3-dimensional contact geometry since its inception around 1990. In this article, we will discuss the genesis of this dichotomy in Eliashberg's seminal work and his influential contributions to the theory.