Generic fibrations around multiple fibers
Geometric Topology
2015-02-25 v2
Abstract
Given some type of fibration on a 4-manifold with a torus regular fiber , we may produce a new 4-manifold by performing torus surgery on . There is a natural way to extend the fibration to , but a multiple fiber (non-generic) singularity is introduced. We construct explicit generic fibrations (with only indefinite fold singularities) in a neighborhood of this multiple fiber. As an application this gives explicit constructions of broken Lefschetz fibrations on all elliptic surfaces (e.g. the family ). As part of the construction we produce generic fibrations around exceptional fibers of Seifert fibered spaces.
Cite
@article{arxiv.1405.6418,
title = {Generic fibrations around multiple fibers},
author = {Kyle Larson},
journal= {arXiv preprint arXiv:1405.6418},
year = {2015}
}
Comments
12 pages, 6 figures. Corrected typos and made minor revisions