1.

Record Nr.

UNINA9910130745103321

Autore

Mayer Volker

Titolo

Distance expanding random mappings, thermodynamical formalism, Gibbs measures and fractal geometry / / Volker Mayer, Bartlomiej Skorulski, Mariusz Urbanski

Pubbl/distr/stampa

Berlin, : Springer, 2011

ISBN

3-642-23650-2

Edizione

[1st ed. 2011.]

Descrizione fisica

1 online resource (X, 112 p. 3 illus. in color.)

Collana

Lecture notes in mathematics, , 0075-8434 ; ; 2036

Altri autori (Persone)

SkorulskiBartlomiej

UrbanskiMariusz

Disciplina

515.39

515.48

Soggetti

Functions, Meromorphic

Gibbs' equation

Fractals

Expanding universe

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Bibliographic Level Mode of Issuance: Monograph

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

1 Introduction -- 2 Expanding Random Maps -- 3 The RPF–theorem -- 4 Measurability, Pressure and Gibbs Condition -- 5 Fractal Structure of Conformal Expanding Random Repellers -- 6 Multifractal Analysis -- 7 Expanding in the Mean -- 8 Classical Expanding Random Systems -- 9 Real Analyticity of Pressure.

Sommario/riassunto

The theory of random dynamical systems originated from stochastic differential equations. It is intended to provide a framework and techniques to describe and analyze the evolution of dynamical systems when the input and output data are known only approximately, according to some probability distribution. The development of this field, in both the theory and applications, has gone in many directions. In this manuscript we introduce measurable expanding random dynamical systems, develop the thermodynamical formalism and establish, in particular, the exponential decay of correlations and analyticity of the expected pressure although the spectral gap property does not hold. This theory is then used to investigate fractal properties of conformal random systems. We prove a Bowen’s formula and



develop the multifractal formalism of the Gibbs states. Depending on the behavior of the Birkhoff sums of the pressure function we arrive at a natural classification of the systems into two classes: quasi-deterministic systems, which share many properties of deterministic ones; and essentially random systems, which are rather generic and never bi-Lipschitz equivalent to deterministic systems. We show that in the essentially random case the Hausdorff measure vanishes, which refutes a conjecture by Bogenschutz and Ochs. Lastly, we present applications of our results to various specific conformal random systems and positively answer a question posed by Bruck and Buger concerning the Hausdorff dimension of quadratic random Julia sets.