English

Diabolical entropy

Dynamical Systems 2019-03-12 v1

Abstract

Milnor and Thurston's famous paper proved monotonicity of the topological entropy for the real quadratic family. Guckenheimer showed that it is H\"older continuous. We obtain a precise formula for the H\"older exponent at almost every quadratic parameter. Furthermore, the entropy of most parameters is proven to be in a set of Hausdorff dimension smaller than one, while most values of the entropy arise from a set of parameters of dimension smaller than one.

Keywords

Cite

@article{arxiv.1610.02563,
  title  = {Diabolical entropy},
  author = {Neil Dobbs and Nicolae Mihalache},
  journal= {arXiv preprint arXiv:1610.02563},
  year   = {2019}
}
R2 v1 2026-06-22T16:15:13.989Z