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Discretisations des homeomorphismes du cercle
a paraitre dans Ergodic Theory and Dynamical Systems -
Analyse structurelle des systèmes dynamiques
National audience -
Mathematical modeling and study of dynamical systems in epidemiology. Case of...
These last years several infectious diseases have appeared or reappeared. These phenomenon are not new and several factors, such as climatic changes, the increase of... -
Combinatorics and dynamics of Teichmüller flow
In this thesis, we study the dynamics of the linear flow of translation surfaces and its renormalization by the Teichmüller flow introduced by H. Masur and W. Veech in... -
Dynamics of a large-scale field generated over a turbulent background
The Von Karman Sodium experiment displays a magnetic field generated by dynamo action in a fully turbulent flow of liquid sodium. The magnetic field can be either... -
Etude de la dynamique pour le décodage itératif par propagation de croyances ...
4 pages. 8 figures. -
La polysémie - construction dynamique du sens
Polysemy is a pervasive phenomenon in natural languages. Lexical words (nouns, verbs, adjectives, etc.) hardly have a unique meaning. More commonly, a word can be... -
Geometry and dynamics on real algebraic surfaces
This thesis deals with automorphisms of real algebraic surfaces, which are polynomial transformations with a polynomial inverse. The main concern is whether their... -
Sources of parental knowledge of adolescent leisure activities and adolescent...
Parental knowledge of adolescent leisure activities is widely recognized as a strong predictor of adolescent psychosocial adjustment. However, the issue of its sources... -
Surveillance d'installations industrielles: démarche générale et conception d...
Ce rapport a pour but de présenter la démarche générale élaborée à l'IRISA en matière de surveillance d'installations industrielles pour la maintenance conditionnelle.... -
Surveillance et diagnostic de systèmes dynamiques: approches complémentaires ...
La conduite et la maintenance de procédés industriels nécessitent l'analyse de leur comportement tel qu'il est perçu par les divers capteurs. Il s'agit essentiellement... -
Estimates of the conjugacy to rotations of circle diffeomorphisms. Successive...
This thesis deals with some questions on differentiable dynamical systems. It comprises two relatively independent parts, with two chapters each. The first part deals... -
Numerical Methods for nonlinear dynamical systems. Application to self-sustai...
Periodic solutions of nonlinear dynamical systems are the focus of this work. We compute periodic solutions through a BVP formulation, solved with two numerical... -
Fragmentation and algebraic properties of homeomorphisms groups
In this thesis, we are interested in various algebraic properties of groups of homeomorphisms and diffeomorphisms of manifolds. We call fragmentation the possibility... -
Modelling structural of social networks : towards a decision support tool in ...
To manage a public health crisis resulting from an outbreak of a large-scale pandemic, it is necessary to be capable of taking adequate measures very quickly. These... -
Lyapunov functions : a weak KAM approach
This thesis is divided into three parts. In the first part, we give a new description of chain-recurrence using an ultrametric barrier. This barrier allows to endow... -
Problems of linearization in some families of analytic germs.
We are interested in the linearization of some families of analytic germs. By generalizing definitions and properties of transfinite diameter, we obtain a polynomial... -
Extreme values of random or chaotic discretization steps
URL des Documents de travail : http://ces.univ-paris1.fr/cesdp/cesdp2012.html An article based on this working paper is accepted in Journal of Applied Mathematical Sciences -
Probabilistic sources: from sequences to systems
This monograph synthesizes several studies in average-case analysis of algorithms and in computational biology. Several works, spanning from the study of problems on...
