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We study torus actions on symplectic manifolds with proper moment maps in the case that each reduced space is two-dimensional.We provide a complete set of invariants for such spaces.YAEL KARSHON AND SUSAN TOLMAN 14. Rigidification of local stretch maps 62 15.Rigidification of sb-diffeomorphisms 67 Part V: Paintings 71 16.Surface bundles 71 17.Global objects: the exciting transition 74 18. Smooth Paintings 75 19.Eliminating the smooth structure 77 20.
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Karshon et al. (2004) studied this question.
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