Infinitely many universally tight contact manifolds with trivial Ozsváth-Szabó contact invariants. Ghiggini, Paolo (2006) Geometry & Topology
Irreducibility of some representations of the groups of symplectomorphisms and contactomorphisms Łukasz Garncarek (2014) Colloquium Mathematicae We show the irreducibility of some unitary representations of the group of symplectomorphisms and the group of contactomorphisms.