The homotopy type of the space of symplectic balls in rational ruled 4-manifolds

Silvia Anjos, Francois Lalonde, Martin Pinsonnault

Let M:=(M^{4},\om) be a 4-dimensional rational ruled symplectic manifold and denote by w_{M} its Gromov width. Let Emb_ω(B^{4}(c),M) be the space of symplectic embeddings of the st…