Mathematics – Symplectic Geometry
Scientific paper
2009-08-26
Mathematics
Symplectic Geometry
17 pages, 6 figures. Section 2 rewritten, proof of Theorem 2.1 corrected
Scientific paper
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.
Gay David T.
Stipsicz András I.
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