English

Symplectic hats

Geometric Topology 2022-08-05 v3 Symplectic Geometry

Abstract

We study relative symplectic cobordisms between contact submanifolds, and in particular relative symplectic cobordisms to the empty set, that we call hats. While we make some observations in higher dimensions, we focus on the case of transverse knots in the standard 3-sphere, and hats in blow-ups of the (punctured) complex projective planes. We apply the construction to give constraints on the algebraic topology of fillings of double covers of the 3-sphere branched over certain transverse quasipositive knots.

Keywords

Cite

@article{arxiv.2001.08978,
  title  = {Symplectic hats},
  author = {John B. Etnyre and Marco Golla},
  journal= {arXiv preprint arXiv:2001.08978},
  year   = {2022}
}

Comments

46 pages, 5 figures; accepted for publication by the Journal of Topology

R2 v1 2026-06-23T13:19:47.749Z