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NorCal Symplectic Seminar: Weinstein handlebodies for complements of smoothed toric divisors

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Speaker: Angela Wu, University College London
Start time: Mon, Apr 5 2021, 1:00PM

In this talk, we are concerned with two important classes of symplectic manifolds: toric manifolds, which are equipped with an effective Hamiltonian action of the torus, and Weinstein manifolds, which come with handle decompositions compatible with their symplectic structures. The complements of a class of smoothed toric divisors which we call "centered" support a Weinstein structure, thus can be fully described by Weinstein diagrams. I will show you an algorithm which produces the specific Weinstein handlebody diagram of such complements. This is based on joint work with Acu, Capovilla-Searle, Gadbled, Marinković, Murphy, and Starkston.