English

On symplectic caps

Symplectic Geometry 2010-09-24 v3 Geometric Topology

Abstract

An important class of contact 3--manifolds are those that arise as links of rational surface singularities with reduced fundamental cycle. We explicitly describe symplectic caps (concave fillings) of such contact 3--manifolds. As an application, we present a new obstruction for such singularities to admit rational homology disk smoothings.

Keywords

Cite

@article{arxiv.0908.3774,
  title  = {On symplectic caps},
  author = {David T. Gay and Andras I. Stipsicz},
  journal= {arXiv preprint arXiv:0908.3774},
  year   = {2010}
}

Comments

17 pages, 6 figures. Section 2 rewritten, proof of Theorem 2.1 corrected

R2 v1 2026-06-21T13:39:04.695Z