Über Gleichgewichtszustände der Druckfunktion.
Un Exemple de Transition de Phase.
Une généralisation du développement en fraction continue
Une nouvelle propriété des suites de Rudin-Shapiro
Les suites de Rudin-Shapiro ont des propriétés extrémales en analyse harmonique. En remarquant qu’une telle suite est reconnaissable par un automate fini, nous en décrivons explicitement le spectre (type spectral maximal, multiplicité spectrale fonction multiplicité). Nous établissons par exemple, que la suite de Rudin-Shapiro généralisée à l’ordre contient dans son spectre une composante de Lebesgue, de multiplicité .
Une transformation générique peut être insérée dans un flot
Uniform Distribution and the Mean Ergodic Theorem.
Uniform Ergodic Theormes for Markov Operators on C(X).
Unimodular Eigenvalues and Linear Chaos in Hilbert Spaces.
Unique Bernoulli -measures
We improve and subsume the conditions of Johansson and Öberg and Berbee for uniqueness of a -measure, i.e., a stationary distribution for chains with complete connections. In addition, we prove that these unique -measures have Bernoulli natural extensions. We also conclude that we have convergence in the Wasserstein metric of the iterates of the adjoint transfer operator to the -measure.
Unique Ergodicity for Foliations
Unique Ergodicity for Quasi-Invariant Measures.
Uniqueness of a martingale-coboundary decomposition of stationary processes
In the limit theory for strictly stationary processes , the decomposition proved to be very useful; here is a bimeasurable and measure preserving transformation an is a martingale difference sequence. We shall study the uniqueness of the decomposition when the filtration of is fixed. The case when the filtration varies is solved in [13]. The necessary and sufficient condition of the existence of the decomposition were given in [12] (for earlier and weaker versions of the results see [7])....
Uniqueness of the polar factorisation and projection of a vector-valued mapping
Universal parallel composition laws and their representations.