Séminaire Nantes-Orsay, 18 octobre 2019

Le prochain séminaire Nantes-Orsay de géométrie de contact et symplectique aura lieu le vendredi 18 octobre 2019 à Nantes. 

Programme en salle Eole :

14h00 : Yang Huang (LMU, Munich) 

Titre : « Convex hypersurface theory and applications in contact topology ». 

Résumé : Following ideas of Eliashberg-Gromov and Giroux, I will explain a Morse-theoretic approach to contact topology, especially in higher dimensions. Time permitting, I will also discuss current and future applications of convex hypersurface theory to contact topology. Based on joint work with K. Honda. 

15h30 : Gaël Meigniez (UBS, Vannes) 

Titre : "Deforming foliations into contact structures in all dimensions". 

Résumé : joint work with M. Bertelson. I will explain how every taut, almost symplectic, codimension-one foliation with enough holonomy on a (2n+1)-manifold can be deformed into a contact structure. The tools are a Morse theory for taut foliations, the Borman-Eliashberg-Murphy h-principle for overtwisted contact structures, and the Eliashberg-Murphy cobordism symplectization theorem.