Symplectic 4‐manifolds admit Weinstein trisections

  title={Symplectic 4‐manifolds admit Weinstein trisections},
  author={Peter Lambert-Cole and J. Meier and Laura Starkston},
  journal={arXiv: Geometric Topology},
We prove that every symplectic 4-manifold admits a trisection that is compatible with the symplectic structure in the sense that the symplectic form induces a Weinstein structure on each of the three sectors of the trisection. Along the way, we show that a (potentially singular) symplectic braided surface in $\mathbb{CP}^2$ can be symplectically isotoped into bridge position. 

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