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Book DetailsMemoirs of the American Mathematical SocietyVolume: 259; 2019; 81 ppMSC: Primary 37
This paper is an interval dynamics counterpart of three theories founded earlier by the authors, S. Smirnov and others in the setting of the iteration of rational maps on the Riemann sphere: the equivalence of several notions of nonuniform hyperbolicity, Geometric Pressure, and Nice Inducing Schemes methods leading to results in thermodynamical formalism.
The authors work in a setting of generalized multimodal maps, that is, smooth maps \(f\) of a finite union of compact intervals \(\widehat I\) in \(\mathbb{R}\) into \(\mathbb{R}\) with nonflat critical points, such that on its maximal forward invariant set \(K\) the map \(f\) is topologically transitive and has positive topological entropy. They prove that several notions of nonuniform hyperbolicity of \(f_K\) are equivalent (including uniform hyperbolicity on periodic orbits, TCE & all periodic orbits in \(K\) hyperbolic repelling, Lyapunov hyperbolicity, and exponential shrinking of pullbacks). They prove that several definitions of geometric pressure \(P(t)\), that is pressure for the map \(f_K\) and the potential \(t\log f'\), give the same value (including pressure on periodic orbits, “tree” pressure, variational pressures and conformal pressure). Finally they prove that, provided all periodic orbits in \(K\) are hyperbolic repelling, the function \(P(t)\) is real analytic for \(t\) between the “condensation” and “freezing” parameters and that for each such \(t\) there exists unique equilibrium (and conformal) measure satisfying strong statistical properties.

Table of Contents

Chapters

1. Introduction: The main results

2. Preliminaries

3. Nonuniformly hyperbolic interval maps

4. Equivalence of the definitions of geometric pressure

5. Pressure on periodic orbits

6. Nice inducing schemes

7. Analytic dependence of geometric pressure on temperature. Equilibria

8. Proof of key lemma: Induced pressure

A. More on generalized multimodal maps

B. Uniqueness of equilibrium via inducing

C. Conformal pressures


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This paper is an interval dynamics counterpart of three theories founded earlier by the authors, S. Smirnov and others in the setting of the iteration of rational maps on the Riemann sphere: the equivalence of several notions of nonuniform hyperbolicity, Geometric Pressure, and Nice Inducing Schemes methods leading to results in thermodynamical formalism.
The authors work in a setting of generalized multimodal maps, that is, smooth maps \(f\) of a finite union of compact intervals \(\widehat I\) in \(\mathbb{R}\) into \(\mathbb{R}\) with nonflat critical points, such that on its maximal forward invariant set \(K\) the map \(f\) is topologically transitive and has positive topological entropy. They prove that several notions of nonuniform hyperbolicity of \(f_K\) are equivalent (including uniform hyperbolicity on periodic orbits, TCE & all periodic orbits in \(K\) hyperbolic repelling, Lyapunov hyperbolicity, and exponential shrinking of pullbacks). They prove that several definitions of geometric pressure \(P(t)\), that is pressure for the map \(f_K\) and the potential \(t\log f'\), give the same value (including pressure on periodic orbits, “tree” pressure, variational pressures and conformal pressure). Finally they prove that, provided all periodic orbits in \(K\) are hyperbolic repelling, the function \(P(t)\) is real analytic for \(t\) between the “condensation” and “freezing” parameters and that for each such \(t\) there exists unique equilibrium (and conformal) measure satisfying strong statistical properties.

Chapters

1. Introduction: The main results

2. Preliminaries

3. Nonuniformly hyperbolic interval maps

4. Equivalence of the definitions of geometric pressure

5. Pressure on periodic orbits

6. Nice inducing schemes

7. Analytic dependence of geometric pressure on temperature. Equilibria

8. Proof of key lemma: Induced pressure

A. More on generalized multimodal maps

B. Uniqueness of equilibrium via inducing

C. Conformal pressures