Lagrangian submanifolds of complex projective space

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Michael Usher, University of Georgia

First, I will discuss a proof that a Lagrangian torus in 鈩傗剻2 arising from a semitoric system described by Weiwei Wu coincides with the image in 鈩傗剻2 of Chekanov's exotic Lagrangian torus in 鈩4. I will then turn to what can be regarded as higher-dimensional versions of Wu's torus, which include a monotone Lagrangian torus in 鈩傗剻3 which is not isotopic either to the Clifford torus or to any of Chekanov and Schlenk's twist tori, as well as monotone Lagrangian submanifolds of 鈩傗剻n for n at least 4 which (unusually for monotone Lagrangians) are Hamiltonianly displaceable. This is joint work with Joel Oakley.