Multifractal formalism for Benedicks-Carleson quadratic maps

Yong Moo Chung, Hiroki Takahasi

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


For a positive measure set of non-uniformly expanding quadratic maps on the interval we effect a multifractal formalism, i.e., decompose the phase space into level sets of time averages of a given continuous function and consider the associated Birkhoff spectrum which encodes this decomposition. We derive a formula which relates the Hausdorff dimension of level sets to entropies and Lyapunov exponents of invariant probability measures, and then use this formula to show that the spectrum is continuous. In order to estimate the Hausdorff dimension from above, one has to 'see' sufficiently many points. To this end, we construct a family of towers. Using these towers we establish a large deviation principle of empirical distributions, with Lebesgue as a reference measure.

Original languageEnglish
Pages (from-to)1116-1141
Number of pages26
JournalErgodic Theory and Dynamical Systems
Issue number4
Publication statusPublished - 2014
Externally publishedYes

ASJC Scopus subject areas

  • Mathematics(all)
  • Applied Mathematics


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