Séance du 6 janvier 2017

Lieu: IHP, salle 201
Attention, pas d'exposé le matin.

RDV à 12:15 à l'IHP pour aller déjeuner, pour celles et ceux qui le souhaitent !

14:15 Luís Diogo (Columbia)  
Monotone Lagrangians in cotangent bundles of spheres.
Abstract: We show that there is a 1-parameter family of monotone Lagrangians in cotangent bundles of spheres with the following property: every (orientable spin) closed monotone Lagrangian with non-trivial Floer cohomology is not Hamiltonian-displaceable from either the zero-section or one of the Lagrangians in the family. The proof involves studying a version of the wrapped Fukaya category that includes monotone Lagrangians. This is joint work with Mohammed Abouzaid.

16:00  Maÿlis Limouzineau (Jussieu) 
Constructions of Legendrian knots and cobordisms together with generating functions .

Abstract: Among all Legendrian knots in the space J^1(R,R) = R x T*R, some can be obtained from graphs of functions by a classic and natural operation~: by taking the contour of generating functions. We focus on this very restrictive class of Legendrians, and offer constructions to help studying them. In this talk, we will discuss in particular the related notion of cobordism~: that is Legendrian surfaces between Legendrian knots which are also contour of generating functions.

Prochaines séances: 3 mars (B. Chantraine, L. Hernandez Corbato, J. Wang), 31 mars (I. Itenberg, ?, ?)

Autre activité symplectique à Paris:
- Séminaire Nantes-Orsay,