Lefschetz fibrations and symplectic structures

by A.W. Tel

Institution: Universiteit Utrecht
Year: 2015
Keywords: Lefschetz fibration, Lefschetz pencil, symplectic geometry, fiber bundle, complex geometry, compatibility
Record ID: 1255914
Full text PDF: http://dspace.library.uu.nl:8080/handle/1874/311281


In this thesis, we study a relation between symplectic structures and Lefschetz ?brations to shed some light on 4-manifold theory. We introduce symplectic manifolds and state some results about them. We then introduce Lefschetz fi?brations, which are a generalization of ?fiber bundles, and discuss them briefly to obtain an intuitive understanding. The main theorem of this thesis is a result obtained by Gompf. It provides a way to construct a symplectic structure on a general Lefschetz ?fibration with homologeously nonzero fi?ber. We also discuss a generalization of this, achieved by Gompf, that generalizes this result to arbitrary even dimensions.