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math.SG2015
The equivariant cohomology of complexity one spaces
Tara S. Holm, Liat Kessler
Complexity one spaces are an important class of examples in symplectic geometry. Karshon and Tolman classify them in terms of combinatorial and topological data. In this paper, we…
math.SG2015
Circle actions on symplectic four-manifolds
Tara S. Holm, Liat Kessler
We complete the classification of Hamiltonian torus and circle actions on symplectic four-dimensional manifolds. Following work of Delzant and Karshon, Hamiltonian circle and 2-tor…