1. CJM 2012 (vol 65 pp. 467)
|Quasimap Floer Cohomology for Varying Symplectic Quotients|
We show that quasimap Floer cohomology for varying symplectic quotients resolves several puzzles regarding displaceability of toric moment fibers. For example, we (i) present a compact Hamiltonian torus action containing an open subset of non-displaceable orbits and a codimension four singular set, partly answering a question of McDuff, and (ii) determine displaceability for most of the moment fibers of a symplectic ellipsoid.
Keywords:Floer cohomology, Hamiltonian displaceability