English

Reeb orbits frequently intersecting a symplectic surface

Symplectic Geometry 2025-05-23 v2 Dynamical Systems

Abstract

Consider a symplectic surface in a three-dimensional contact manifold with boundary on Reeb orbits (periodic orbits of the Reeb vector field). We assume that the rotation numbers of the boundary Reeb orbits satisfy a certain inequality, and we also make a technical assumption that the Reeb vector field has a particular ``nice'' form near the boundary of the surface. We then show that there exist Reeb orbits which intersect the interior of the surface, with a lower bound on the frequency of these intersections in terms of the symplectic area of the surface and the contact volume of the three-manifold. No genericity of the contact form is assumed. As a corollary of the main result, we obtain a generalization of various recent results relating the mean action of periodic orbits to the Calabi invariant for area-preserving surface diffeomorphisms.

Keywords

Cite

@article{arxiv.2504.19332,
  title  = {Reeb orbits frequently intersecting a symplectic surface},
  author = {Michael Hutchings},
  journal= {arXiv preprint arXiv:2504.19332},
  year   = {2025}
}

Comments

37 pages; v2 added a reference to section 1 and made a correction to section 2

R2 v1 2026-06-28T23:13:02.900Z