Abstract
We consider various constructions of monotone Lagrangian submanifolds of , , and quadric hypersurfaces of . In and we show that several different known constructions of exotic monotone tori yield results that are Hamiltonian isotopic to each other, in particular answering a question of Wu by showing that the monotone fiber of a toric degeneration model of is Hamiltonian isotopic to the Chekanov torus. Generalizing our constructions to higher dimensions leads us to consider monotone Lagrangian submanifolds (typically not tori) of quadrics and of which can be understood either in terms of the geodesic flow on or in terms of the Biran circle bundle construction. Unlike previously known monotone Lagrangian submanifolds of closed simply connected symplectic manifolds, many of our higher-dimensional Lagrangian submanifolds are provably displaceable.
Citation
Joel Oakley. Michael Usher. "On certain Lagrangian submanifolds of $S^2\times S^2$ and $\mathbb{C}\mathrm{P}^n$." Algebr. Geom. Topol. 16 (1) 149 - 209, 2016. https://doi.org/10.2140/agt.2016.16.149
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