Geodesic
Quasimap Floer Cohomology for Varying Symplectic Quotients
Canadian journal of mathematics, Tome 65 (2013) no. 2, pp. 467-480

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DOI

We show that quasimap Floer cohomology for varying symplectic quotients resolves several puzzles regarding displaceability of toric moment fibers. For example, we 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 we determine displaceability for most of the moment fibers of a symplectic ellipsoid.
DOI : 10.4153/CJM-2012-008-9
Mots-clés : 53Dxx, Floer cohomology, Hamiltonian displaceability 
Wilson, Glen; Woodward, Christopher T. Quasimap Floer Cohomology for Varying Symplectic Quotients. Canadian journal of mathematics, Tome 65 (2013) no. 2, pp. 467-480. doi: 10.4153/CJM-2012-008-9
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     author = {Wilson, Glen and Woodward, Christopher T.},
     title = {Quasimap {Floer} {Cohomology} for {Varying} {Symplectic} {Quotients}},
     journal = {Canadian journal of mathematics},
     pages = {467--480},
     year = {2013},
     volume = {65},
     number = {2},
     doi = {10.4153/CJM-2012-008-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2012-008-9/}
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