Dans cette thèse, on étudie dans un premier temps la régularité d'un exposant caractéristique en fonction d'une perturbation. Plus précisément, on généralise un résultat de Ruelle en montrant que l'exposant caractéristique dépend de manière réelle-analytique d'une perturbation, sans faire aucune hypothèse topologique. On développe ensuite la théorie des cônes complexes. On introduit une généralisation complexe de la métrique de Hilbert. On prouve que cette généralisation vérifie un principe de contraction semblable au théorème de Birkhoff. On obtient alors des généralisations complexes du théorème de Perron-Frobenius. Enfin, on utilise les estimations de trous spectraux données par les cônes complexes pour donner une constante explicite dan...
Also arXiv:1307.4649International audienceDoeblin and Dobrushin characterized the contraction rate o...
23 pages, 5 figuresIn the field of enumeration of walks in cones, it is known how to compute asympto...
This paper is devoted to the perturbation theory for defective matrices. We consider the asymptotic ...
L'objet de cette thèse est l'introduction, l'étude et l'utilisation des cônes complexes multidimensi...
The subject of this thesis is the introduction, the study and the applications of multidimensional c...
In his work on the foundations of geometry, Hilbert observed that a formula which appeared in works ...
Dans l'étude des différents aspects de la théorie des opérateurs interviennent souvent certaines cla...
The Perron-Frobenius Theorem says that if A is a nonnegative square matrix some power of which is po...
AbstractFuhrmann [Israel J. Math.16 (1973), 162-176], and subsequently Ball and Lubin [Pacific J. Ma...
. We contribute to the dictionary between action of Kleinian groups and iteration of rational functi...
When T is a completely non-unitary (cnu) contraction with Sz.-Nagy–Foias characteristic function θ a...
In this paper we show that the symplectic Hamiltonian operators on a Hilbert space give rise to line...
© 2014, Springer Basel. Doeblin and Dobrushin characterized the contraction rate of Markov operators...
For a symmetric cone Ω we compute its Riemannian distance in terms of the singular values of a gener...
The first topic of this thesis is concerned with the application of the continuous perturbation the...
Also arXiv:1307.4649International audienceDoeblin and Dobrushin characterized the contraction rate o...
23 pages, 5 figuresIn the field of enumeration of walks in cones, it is known how to compute asympto...
This paper is devoted to the perturbation theory for defective matrices. We consider the asymptotic ...
L'objet de cette thèse est l'introduction, l'étude et l'utilisation des cônes complexes multidimensi...
The subject of this thesis is the introduction, the study and the applications of multidimensional c...
In his work on the foundations of geometry, Hilbert observed that a formula which appeared in works ...
Dans l'étude des différents aspects de la théorie des opérateurs interviennent souvent certaines cla...
The Perron-Frobenius Theorem says that if A is a nonnegative square matrix some power of which is po...
AbstractFuhrmann [Israel J. Math.16 (1973), 162-176], and subsequently Ball and Lubin [Pacific J. Ma...
. We contribute to the dictionary between action of Kleinian groups and iteration of rational functi...
When T is a completely non-unitary (cnu) contraction with Sz.-Nagy–Foias characteristic function θ a...
In this paper we show that the symplectic Hamiltonian operators on a Hilbert space give rise to line...
© 2014, Springer Basel. Doeblin and Dobrushin characterized the contraction rate of Markov operators...
For a symmetric cone Ω we compute its Riemannian distance in terms of the singular values of a gener...
The first topic of this thesis is concerned with the application of the continuous perturbation the...
Also arXiv:1307.4649International audienceDoeblin and Dobrushin characterized the contraction rate o...
23 pages, 5 figuresIn the field of enumeration of walks in cones, it is known how to compute asympto...
This paper is devoted to the perturbation theory for defective matrices. We consider the asymptotic ...