Symplectic surgeries from singularities

Details Symplectic surgeries from singularities Symplectic surgeries from singularities

2002-12-16

arxiv.org/abs/math/0212213v2

Turkish J. Math. 27 (2003), 231--250.

Mathematics

Symplectic Geometry

Referee's corrections

Scientific paper

We describe a variety of symplectic surgeries (not a priori compatible with Kahler structures) which are obtained by combining local Kahler degenerations and resolutions of singularities. The effect of the surgeries is to replace configurations of Lagrangian spheres with symplectic submanifolds. We discuss several examples in detail, relating them to existence questions for symplectic manifolds with $c_1>0, c_1=0, c_1<0$ in four and six dimensions.

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