English

Local rigidity for symplectic billiards

Dynamical Systems 2025-09-01 v2

Abstract

We show a local rigidity result for the integrability of symplectic billiards. We prove that any domain which is close to an ellipse, and for which the symplectic billiard map is rationally integrable must be an ellipse as well. This is in spirit of the result of Avila, De Simoi, and Kaloshin for Birkhoff billiards.

Keywords

Cite

@article{arxiv.2501.08849,
  title  = {Local rigidity for symplectic billiards},
  author = {Daniel Tsodikovich},
  journal= {arXiv preprint arXiv:2501.08849},
  year   = {2025}
}

Comments

27 pages, 2 figures. Minor revisions

R2 v1 2026-06-28T21:07:15.055Z