English

On sections of genus two Lefschetz fibrations

Geometric Topology 2009-11-14 v3

Abstract

In this note we find new relations in the mapping class group of a genus two surface with n boundary components for n=1,..., 8 which induce a genus two Lefschetz fibration CP^2#13CP^2bar \to S^2 with n disjoint sections. As a consequence, we observe any holomorphic genus 2 Lefschetz fibration without separating singular fibers admits a section.

Keywords

Cite

@article{arxiv.0804.2237,
  title  = {On sections of genus two Lefschetz fibrations},
  author = {Sinem Celik Onaran},
  journal= {arXiv preprint arXiv:0804.2237},
  year   = {2009}
}

Comments

13 pages, 11 figures, relations for n=7 and n=8 are added

R2 v1 2026-06-21T10:30:42.320Z