English

A horseshoe with a discontinuous entropy spectrum

Dynamical Systems 2019-10-15 v1

Abstract

We study the regularity of the entropy spectrum of the Lyapunov exponents for hyperbolic maps on surfaces. It is well-known that the entropy spectrum is a concave upper semi-continuous function which is analytic on the interior of the set Lyapunov exponents. In this paper we construct a family of horseshoes with a discontinuous entropy spectrum at the boundary of the set of Lyapunov exponents.

Keywords

Cite

@article{arxiv.1910.05837,
  title  = {A horseshoe with a discontinuous entropy spectrum},
  author = {Pavel Javornik and Joseph Winter and Christian Wolf},
  journal= {arXiv preprint arXiv:1910.05837},
  year   = {2019}
}
R2 v1 2026-06-23T11:42:25.839Z