English

Non-orderability and the contact Hofer norm

Symplectic Geometry 2025-03-06 v2

Abstract

We relate non-orderability in contact topology to shortening in the contact Hofer norm. Combined with considerations of open books, this provides many new examples of non-orderable contact manifolds, including contact boundaries of subcritical Weinstein domains, and in particular the long-standing case of the standard S1×S2.S^1 \times S^2. We also produce new examples of contact manifolds admitting contactomorphisms without translated points, provide obstructions to subcritical polarizations of symplectic manifolds, and establish a C0\mathcal{C}^0-continuity property of the contact Hofer metric.

Keywords

Cite

@article{arxiv.2411.19887,
  title  = {Non-orderability and the contact Hofer norm},
  author = {Jakob Hedicke and Egor Shelukhin},
  journal= {arXiv preprint arXiv:2411.19887},
  year   = {2025}
}

Comments

28 pages, further details added

R2 v1 2026-06-28T20:17:09.516Z