English

On sections of hyperelliptic Lefschetz fibrations

Geometric Topology 2012-01-25 v2

Abstract

We construct a relation among right-handed Dehn twists in the mapping class group of a compact oriented surface of genus g with 4g+4 boundary components. This relation gives an explicit topological description of 4g+4 disjoint (-1)-sections of a hyperelliptic Lefschetz fibration of genus g on the manifold {CP}^2#(4g+5){-CP}^2.

Keywords

Cite

@article{arxiv.1201.4797,
  title  = {On sections of hyperelliptic Lefschetz fibrations},
  author = {Shunsuke Tanaka},
  journal= {arXiv preprint arXiv:1201.4797},
  year   = {2012}
}

Comments

19 pages, 21 figures

R2 v1 2026-06-21T20:08:34.700Z