English

Complex a priori bounds for multicritical circle maps with bounded type rotation number

Dynamical Systems 2025-09-18 v1

Abstract

In this paper we study homeomorphisms of the circle with several critical points and bounded type rotation number. We prove complex a priori bounds for these maps. As an application, we get that bi-cubic circle maps with same bounded type rotation number are C1+αC^{1+\alpha} rigid.

Keywords

Cite

@article{arxiv.2005.02377,
  title  = {Complex a priori bounds for multicritical circle maps with bounded type rotation number},
  author = {Gabriela Estevez and Daniel Smania and Michael Yampolsky},
  journal= {arXiv preprint arXiv:2005.02377},
  year   = {2025}
}

Comments

15 pages, 6 figures. arXiv admin note: text overlap with arXiv:1909.01451

R2 v1 2026-06-23T15:19:54.712Z