On Arnold's conjecture for symplectic fixed points
On nonformal simply-connected symplectic manifolds.
On quantum de Rham cohomology theory.
Open books on contact five-manifolds
By using open book techniques we give an alternative proof of a theorem about the existence of contact structures on five-manifolds due to Geiges. The theorem asserts that simply-connected five-manifolds admit a contact structure in every homotopy class of almost contact structures.
Orbifold adjunction formula and symplectic cobordisms between lens spaces.