![[1241] Théorie de l’homotopie motivique et groupes d’homotopie stables, d’après Morel–Voevodsky, Isaksen–Wang–Xu, ...](/media/cache/video_light/uploads/video/Bourbaki.png)

[1241] Théorie de l’homotopie motivique et groupes d’homotopie stables, d’après Morel–Voevodsky, Isaksen–Wang–Xu, ...
De Frédéric Déglise


Resonances and residue operators for pseudo-Riemannian hyperbolic spaces
De Polyxeni Spilioti
Apparaît dans les collections : Jean-Morlet Chair: Moduli spaces in symplectic topology and in Gauge theory / Chaire Jean-Morlet : Espaces de modules en topologie symplectique et en théorie de Jauge, Exposés de recherche
I will describe joint work with Thomas Kragh proving that closed exact Lagrangians in cotangent bundles are simply homotopy equivalent to the base. The main two ideas are (i) a Floer theoretic model for the Whitehead torsion of the projection from the Lagrangian to the base, and (ii) a large scale deformation of the Lagrangian which allows a computation of this torsion.