We prove that for @math there exists a compact subset @math of the closed ball in @math of radius @math , such that @math has Hausdorff dimension @math and does not symplectically embed into the standard open symplectic cylinder. The second main result is a lower bound on the @math -th regular coisotropic capacity, which is sharp up to a factor of 3. For an open subset of a geometrically bounded, aspherical symplectic manifold, this capacity is a lower bound on its displacement energy. The proofs of the results involve a certain Lagrangian submanifold of linear space, which was considered by M. Audin and L. Polterovich.
Introduction Symplectic manifolds and lagrangian submanifolds, examples Lagrangian splittings, real and complex polarizations, Kahler manifolds Reduction, the calculus of canonical relations, intermediate polarizations Hamiltonian systems and group actions on symplectic manifolds Normal forms Lagrangian submanifolds and families of functions Intersection theory of lagrangian submanifolds Quantization on cotangent bundles Quantization and polarizations Quantizing lagrangian submanifolds and subspaces, construction of the Maslov bundle References.