English

Topology of iterated $S^1$-bundles

Algebraic Topology 2013-12-30 v2 Differential Geometry Geometric Topology

Abstract

In this paper we investigate what kind of manifolds arise as the total spaces of iterated S1S^1-bundles. A real Bott tower studied in \cite{CMO}, \cite{KM} and \cite{KN} is an example of an iterated S1S^1-bundle. We show that the total space of an iterated S1S^1-bundle is homeomorphic to an infra-nilmanifold. A real Bott manifold, which is the total space of a real Bott tower, provides an example of a closed flat Riemannian manifold. We also show that real Bott manifolds are the only closed flat Riemannian manifolds obtained from iterated \bbrP1\bbr{P}^1-bundles. Finally we classify the homeomorphism types of the total spaces of iterated S1S^1-bundles in dimension 3.

Keywords

Cite

@article{arxiv.1108.0293,
  title  = {Topology of iterated $S^1$-bundles},
  author = {Jong Bum Lee and Mikiya Masuda},
  journal= {arXiv preprint arXiv:1108.0293},
  year   = {2013}
}