## Links and Pfaffian equation. (Entrelacements et équations de Pfaff.)(French)Zbl 0573.58022

Astérisque 107/108, 87-161 (1983).
The text gives a proof for the existence of nonisomorphic contact structures on the 3-dimensional Euclidean space. Principal themes: contact topology in dimension 3, linking properties of curves and plane fields, geometry of intersections of a surface with the Reeb foliation. Digressions: theory of braids, and analytic curves in the complex plane.
For the entire collection see [Zbl 0516.00018].

### MSC:

 37C85 Dynamics induced by group actions other than $$\mathbb{Z}$$ and $$\mathbb{R}$$, and $$\mathbb{C}$$ 57R30 Foliations in differential topology; geometric theory 53C15 General geometric structures on manifolds (almost complex, almost product structures, etc.)