English

Minimal genus in 4-manifolds with a free circle action

Geometric Topology 2018-12-24 v2

Abstract

Let N be a closed irreducible 3-manifold and assume N is not a graph manifold. We improve for all but finitely many S^1-bundles M over N the adjunction inequality for the minimal complexity of embedded surfaces. This allows us to completely determine the minimal complexity of embedded surfaces in all but finitely many S^1-bundles over a large class of 3-manifolds.

Keywords

Cite

@article{arxiv.1204.3578,
  title  = {Minimal genus in 4-manifolds with a free circle action},
  author = {Stefan Friedl and Stefano Vidussi},
  journal= {arXiv preprint arXiv:1204.3578},
  year   = {2018}
}

Comments

19 pages, updated to reflect new results on 3-manifold groups. Some inaccuracies fixed