Geometry and Topology Seminar

Monday, December 04, 2017 at 3:00pm to 4:00pm

2-123

Laura Starkston (Stanford)

Title: Symplectic isotopy

Abstract: Symplectic surfaces in CP^2 gain significance through a theorem of Auroux stating that all symplectic 4-manifolds are obtained as branched covers of CP^2 with branching set an immersed cuspidal symplectic surface. Though initial progress classifying smooth symplectic surfaces in CP^2 dates back to Gromov's 85 paper, we still have not solved this "symplectic isotopy problem" in high degrees. I will discuss a new approach to the smooth symplectic isotopy problem, and discuss versions for curves with nodal and cuspidal singularities.

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School of Science

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Department of Mathematics
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