22 oct 2014 -- 11:00
Aula seminari, DM, Pisa
Abstract.
(joint work with P. Ghiggini and C. Wendl) By a result of Eliashberg, every symplectic filling of a three-dimensional contact connected sum is obtained by performing a boundary connected sum on another symplectic filling. I will explain a partial generalization of this result for subcritical contact surgeries in higher dimensions: given any 5-dimensional contact manifold that arises from another contact manifold by subcritical surgery, its belt sphere must be nullhomotopic in any symplectically aspherical filling.