An axiomatic definition of the entropy of a -action on a Lebesgue space
An integral formula for entropy of doubly stochastic operators
A new formula for entropy of doubly stochastic operators is presented. It is also checked that this formula fulfills the axioms of the axiomatic definition of operator entropy, introduced in an earlier paper of Downarowicz and Frej. As an application of the formula the 'product rule' is obtained, i.e. it is shown that the entropy of a product is the sum of the entropies of the factors. Finally, the proof of continuity of the new 'static' entropy as a function of the measure is given.
An invariant for continuous mappings
Applications de la notion d'entropie au développement d'un nombre réel dans une base de Pisot
Soit un nombre de Pisot de degré ; nous avons montré précédemment que l’endomorphisme du tore dont est valeur propre est facteur du -shift bilatéral par une application continue ; nous prouvons ici (théorème 1) que l’application conserve l’entropie de toute mesure invariante sur le -shift. Ceci permet de définir l’entropie d’un nombre dans la base et d’en étudier la stabilité. Nous généralisons également des résultats de Kamae, Rauzy et Bernay.
Asymptotic rate of a flow
Bifurcations in One Dimension. I. The Nonwandering Set.
Comparing measure theoretic entropy for -finite measures with topological entropy
Comparing quantum dynamical entropies
Last years, the search for a good theory of quantum dynamical entropy has been very much intensified. This is not only due to its usefulness in quantum probability but mainly because it is a very promising tool for the theory of quantum chaos. Nowadays, there are several constructions which try to fulfill this need, some of which are more mathematically inspired such as CNT (Connes, Narnhofer, Thirring), and the one proposed by Voiculescu, others are more inspired by physics such as ALF (Alicki,...
Conditional entropy and Rokhlin metric
Differentiability and analycity of topological entropy for Anosov and geodesic flows.
Dimension and Structure of Typical Compact Sets, Continua and Curves.
Dimension of measures: the probabilistic approach.
Various tools can be used to calculate or estimate the dimension of measures. Using a probabilistic interpretation, we propose very simple proofs for the main inequalities related to this notion. We also discuss the case of quasi-Bernoulli measures and point out the deep link existing between the calculation of the dimension of auxiliary measures and the multifractal analysis.
Distribution measures and Hausdorff dimensions.
Dynamical entropy of a non-commutative version of the phase doubling
A quantum dynamical system, mimicking the classical phase doubling map on the unit circle, is formulated and its ergodic properties are studied. We prove that the quantum dynamical entropy equals the classical value log2 by using compact perturbations of the identity as operational partitions of unity.
Entropie de l'image inverse d'une application
Entropy and localization of eigenfunctions
Entropy at a weight-per-symbol and embeddings of Markov chains.
Entropy, capacity and arrangements on the cube.
Entropy for noninvariant measures
Entropy, homology and semialgebraic geometry