English

First Steps in Twisted Rabinowitz-Floer Homology

Symplectic Geometry 2023-07-31 v2

Abstract

Rabinowitz-Floer homology is the Morse-Bott homology in the sense of Floer associated with the Rabinowitz action functional introduced by Kai Cieliebak and Urs Frauenfelder in 2009. In our work, we consider a generalisation of this theory to a Rabinowitz-Floer homology of a Liouville automorphism. As an application, we show the existence of noncontractible periodic Reeb orbits on quotients of symmetric star-shaped hypersurfaces. In particular, our theory applies to lens spaces.

Keywords

Cite

@article{arxiv.2105.13934,
  title  = {First Steps in Twisted Rabinowitz-Floer Homology},
  author = {Yannis Bähni},
  journal= {arXiv preprint arXiv:2105.13934},
  year   = {2023}
}

Comments

40 pages, 5 figures. Fixed typos and exposition. Improved main result to hold for all even-dimensional lens spaces. Submitted to the Journal of Symplectic Geometry