English

Kahler decomposition of 4-manifolds

Geometric Topology 2009-04-22 v3 Symplectic Geometry

Abstract

In this article we show that every closed oriented smooth 4-manifold can be decomposed into two codimension zero submanifolds (one with reversed orientation) so that both pieces are exact Kahler manifolds with strictly pseudoconvex boundaries and that induced contact structures on the common boundary are isotopic. Meanwhile, matching pairs of Lefschetz fibrations with bounded fibers are offered as the geometric counterpart of these structures. We also provide a simple topological proof of the existence of folded symplectic forms on 4-manifolds.

Keywords

Cite

@article{arxiv.math/0601396,
  title  = {Kahler decomposition of 4-manifolds},
  author = {R Inanc Baykur},
  journal= {arXiv preprint arXiv:math/0601396},
  year   = {2009}
}

Comments

This is the version published by Algebraic & Geometric Topology on 11 September 2006