Documents  37A15 | enregistrements trouvés : 27

For any countable group, and also for any locally compact second countable, compactly generated topological group, $G$, there exists a "universal" hypercyclic representation on a Hilbert space, in the sense that it simultaneously models every possible ergodic probability measure preserving free action of $G$. I will discuss the original proof of this theorem (a joint work with Benjy Weiss) and then, at the end of the talk, say some words about the development of this idea and its applications as expounded in a subsequent work of Sophie Grivaux. For any countable group, and also for any locally compact second countable, compactly generated topological group, $G$, there exists a "universal" hypercyclic representation on a Hilbert space, in the sense that it simultaneously models every possible ergodic probability measure preserving free action of $G$. I will discuss the original proof of this theorem (a joint work with Benjy Weiss) and then, at the end of the talk, say some words about ...

37A15 ; 37A05 ; 37A25 ; 37A30 ; 47A16 ; 47A67 ; 47D03

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- xviii; 136 p.
ISBN 978-2-85629-866-4

Séminaires & congrès , 0031

Localisation : Collection 1er étage

dynamique hamiltonienne # sous-variété lagrangienne # hamiltonien de Tonelli # méthode variationnelle lagrangienne # théorie d'Aubry-Mather # théorie K.A.M. # théorie K.A.M. faible # statistiques en grande dimension # pénalisation # parcimonie # facteur de compatibilité # géométrie non-commutative # formule des traces # catégorie dérivée # motif # formule de conducteur # ensemble de Kazhdan dans $\mathbb{Z}$ # ensemble de Jamison dans $\mathbb{Z}$ # suite de Jamison # suite équidistribuée # cocycle sous-additif # théorie ergodique # théorème de Kingman # horofonction # semi-contraction dynamique hamiltonienne # sous-variété lagrangienne # hamiltonien de Tonelli # méthode variationnelle lagrangienne # théorie d'Aubry-Mather # théorie K.A.M. # théorie K.A.M. faible # statistiques en grande dimension # pénalisation # parcimonie # facteur de compatibilité # géométrie non-commutative # formule des traces # catégorie dérivée # motif # formule de conducteur # ensemble de Kazhdan dans $\mathbb{Z}$ # ensemble de Jamison dans $...

14A22 ; 14F05 ; 14F42 ; 22D10 ; 22D40 ; 37A15 ; 37A30 ; 37H15 ; 37J05 ; 37J35 ; 37J40 ; 37J50 ; 43A07 ; 46M05 ; 47A10 ; 62J05 ; 62J07 ; 70H05

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- 156 p.
ISBN 978-0-8218-2816-8

Proceedings of symposia in applied mathematics , 0060

Localisation : Collection 1er étage

dynamique symbolique # pavage # code correcteur d'erreur # code linéaire # dynamique complexe # groupe de Steinberg

37B10 ; 37B50 ; 37-06 ; 37A15 ; 37F45 ; 94B05 ; 19C99

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- ix; 87 p.
ISBN 978-0-8218-0980-8

CBMS regional conference series in mathematics , 0109

Localisation : Collection 1er étage

théorie ergodique # action de groupe # super-rigidité # groupe de lie non-compact # groupe discontinue # groupe fondamentale # méthode topologique # arithméticité # représentation de Gromov

22F10 ; 37A15 ; 53C10 ; 57S20 ; 37-02 ; 53-02 ; 22-02

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- ix, 177 p.
ISBN 978-0-8218-4892-0

Contemporary mathematics , 0512

Localisation : Collection 1er étage

simplexes # difféomorphisme

57R17 ; 37J05 ; 28D05 ; 37A15

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- xi; 242 p.
ISBN 978-0-8218-4958-3

Contemporary mathematics , 0532

Localisation : Collection 1er étage

théorie des nombres # théorie ergodique # algèbre topologique

11J70 ; 20F65 ; 22D40 ; 30E05 ; 37A15 ; 37A20 ; 37A30 ; 37A35 ; 54H20 ; 60B15 ; 00B25 ; 11-06 ; 37-06 ; 37Axx

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- xxi; 185 p.
ISBN 978-2-85629-303-4

Séminaires et congrès , 0019

Localisation : Collection 1er étage

opérateur de transfert # produit de matrices aléatoires stationnaires # spectre de Lyapunov # algorithme de Jacobi-Perron # algorithme des fractions continues multidimensionnelles # approximation diophantienne simultanée # dimension de Hausdorff # espace localement symétrique # flot unipotent # théorème de Ratner # espace homogène p-adique # points de Heegner # billards polygonaux

11Gxx ; 11H16 ; 11H46 ; 11J06 ; 11J13 ; 11J17 ; 11J25 ; 11J70 ; 11J83 ; 11K50 ; 11K55 ; 11K60 ; 22E40 ; 22E46 ; 28A80 ; 30F40 ; 37A15 ; 37A17 ; 37A30 ; 37D50 ; 37H15 ; 53C35

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- ix; 258 p.
ISBN 978-1-4704-0931-9

Contemporary mathematics , 0631

Localisation : Collection 1er étage

système dynamique différentiable # théorie ergodique # théorie des nombres # mesure de probabilité sur des groupes # dynamique de Teichmüller # approximation Diophantienne # fonction itérative # marche aléatoire # système dynamique algébrique # S. G. Dani

22D40 ; 28D20 ; 37A15 ; 37A17 ; 37A20 ; 37A30 ; 37A35 ; 37B05 ; 37E35 ; 60B15 ; 37-06 ; 37Axx ; 00B25

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- xi; 315 p.
ISBN 978-1-4704-2020-8

Contemporary mathematics , 0669

Localisation : Collection 1er étage

théorie ergodique # algèbre topologique # approximation diophantienne # nombre transcendant # fraction continue # théorie des groupes # groupe de Lie # fonction d'une variable complexe # interpolation # système dynamique # théorie spectrale # opérateur de Markov # transformation de Fourier

11J70 ; 20F65 ; 22D40 ; 30E05 ; 37A15 ; 37A20 ; 37A30 ; 54H20 ; 60B15

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- xi; 533 p.
ISBN 978-2-85629-855-8

Astérisque , 0390

Localisation : Périodique 1er étage

combinatoire # propriété d'indépendance en théorie des modèles # entropie sofique # résolution de systèmes linéaires sous-déterminés # flot binormal # équation de Schrödinger # conjecture de Hilbert-Smith en géométrie différentielle # géométrie sous-riemannienne # équation de Monge-Ampère en géométrie algébrique complexe # motif # période # problème de modules formels # programme de Langlands géométrique # théorie analytique des nombres # théorie de Hodge du théorème de décomposition # théorie spectrale combinatoire # propriété d'indépendance en théorie des modèles # entropie sofique # résolution de systèmes linéaires sous-déterminés # flot binormal # équation de Schrödinger # conjecture de Hilbert-Smith en géométrie différentielle # géométrie sous-riemannienne # équation de Monge-Ampère en géométrie algébrique complexe # motif # période # problème de modules formels # programme de Langlands géométrique # théorie analytique des nombres # ...

11H99 ; 14C30 ; 14F42 ; 18G55 ; 19E15 ; 32G20 ; 14E20 ; 14D22 ; 57S10 ; 57M60 ; 57S05 ; 57N10 ; 54H15 ; 55M35 ; 35P20 ; 35P25 ; 37A35 ; 37A15 ; 20E15 ; 14F05 ; 14H60 ; 11S37 ; 14D24 ; 22E55 ; 22E57 ; 14B12 ; 57T30 ; 14A20 ; 53C55 ; 32J27 ; 32P05 ; 53C17 ; 28A15 ; 03C68 ; 03C45 ; 03C98 ; 05D10 ; 28E05 ; 58A14 ; 32S60 ; 32S35 ; 55N33 ; 60G15 ; 60G60 ; 35B05 ; 34L20 ; 58J40 ; 52B55 ; 62H12 ; 42B05 ; 35Q55 ; 35C06 ; 35B35 ; 76B47 ; 76B03 ; 11N25 ; 11N64

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The classic mean ergodic theorem has been extended in numerous ways: multiple averages, polynomial iterates, weighted averages, along with combinations of these extensions. I will give an overview of these advances and the different techniques that have been used, focusing on convergence results and what can be said about the limits.

37A05 ; 37A25 ; 37A15

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The classic mean ergodic theorem has been extended in numerous ways: multiple averages, polynomial iterates, weighted averages, along with combinations of these extensions. I will give an overview of these advances and the different techniques that have been used, focusing on convergence results and what can be said about the limits.

37A05 ; 37A25 ; 37A15

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Our first purpose is to show how aspects of the representation theory of (non-amenable) algebraic groups can be utilized to derive effective ergodic theorems for their actions. Our second purpose is to demonstrate some the many interesting applications that ergodic theorems with a rate of convergence have in a variety of problems. We will start by a discussion of property $T$ and show how to extend the spectral estimates it provides considerably beyond their usual formulations. We will also show how to derive best possible spectral estimates via representation theory in some cases. In turn, such spectral estimates will be used to derive effective ergodic theorems. Finally we will show how the rate of convergence in the ergodic theorem implies effective solutions in a host of natural problems, including the non-Euclidean lattice point counting problem, fast equidistribution of lattice orbits on homogenous spaces, and best possible exponents of Diophantine approximation on homogeneous algebraic varieties. Our first purpose is to show how aspects of the representation theory of (non-amenable) algebraic groups can be utilized to derive effective ergodic theorems for their actions. Our second purpose is to demonstrate some the many interesting applications that ergodic theorems with a rate of convergence have in a variety of problems. We will start by a discussion of property $T$ and show how to extend the spectral estimates it provides considerably ...

37A30 ; 37A15 ; 37P55 ; 11F70

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Our first purpose is to show how aspects of the representation theory of (non-amenable) algebraic groups can be utilized to derive effective ergodic theorems for their actions. Our second purpose is to demonstrate some the many interesting applications that ergodic theorems with a rate of convergence have in a variety of problems. We will start by a discussion of property $T$ and show how to extend the spectral estimates it provides considerably beyond their usual formulations. We will also show how to derive best possible spectral estimates via representation theory in some cases. In turn, such spectral estimates will be used to derive effective ergodic theorems. Finally we will show how the rate of convergence in the ergodic theorem implies effective solutions in a host of natural problems, including the non-Euclidean lattice point counting problem, fast equidistribution of lattice orbits on homogenous spaces, and best possible exponents of Diophantine approximation on homogeneous algebraic varieties. Our first purpose is to show how aspects of the representation theory of (non-amenable) algebraic groups can be utilized to derive effective ergodic theorems for their actions. Our second purpose is to demonstrate some the many interesting applications that ergodic theorems with a rate of convergence have in a variety of problems. We will start by a discussion of property $T$ and show how to extend the spectral estimates it provides considerably ...

37A30 ; 37A15 ; 37P55 ; 11F70

... Lire [+]

Our first purpose is to show how aspects of the representation theory of (non-amenable) algebraic groups can be utilized to derive effective ergodic theorems for their actions. Our second purpose is to demonstrate some the many interesting applications that ergodic theorems with a rate of convergence have in a variety of problems. We will start by a discussion of property $T$ and show how to extend the spectral estimates it provides considerably beyond their usual formulations. We will also show how to derive best possible spectral estimates via representation theory in some cases. In turn, such spectral estimates will be used to derive effective ergodic theorems. Finally we will show how the rate of convergence in the ergodic theorem implies effective solutions in a host of natural problems, including the non-Euclidean lattice point counting problem, fast equidistribution of lattice orbits on homogenous spaces, and best possible exponents of Diophantine approximation on homogeneous algebraic varieties. Our first purpose is to show how aspects of the representation theory of (non-amenable) algebraic groups can be utilized to derive effective ergodic theorems for their actions. Our second purpose is to demonstrate some the many interesting applications that ergodic theorems with a rate of convergence have in a variety of problems. We will start by a discussion of property $T$ and show how to extend the spectral estimates it provides considerably ...

37A30 ; 37A15 ; 37P55 ; 11F70

... Lire [+]

Our first purpose is to show how aspects of the representation theory of (non-amenable) algebraic groups can be utilized to derive effective ergodic theorems for their actions. Our second purpose is to demonstrate some the many interesting applications that ergodic theorems with a rate of convergence have in a variety of problems. We will start by a discussion of property $T$ and show how to extend the spectral estimates it provides considerably beyond their usual formulations. We will also show how to derive best possible spectral estimates via representation theory in some cases. In turn, such spectral estimates will be used to derive effective ergodic theorems. Finally we will show how the rate of convergence in the ergodic theorem implies effective solutions in a host of natural problems, including the non-Euclidean lattice point counting problem, fast equidistribution of lattice orbits on homogenous spaces, and best possible exponents of Diophantine approximation on homogeneous algebraic varieties. Our first purpose is to show how aspects of the representation theory of (non-amenable) algebraic groups can be utilized to derive effective ergodic theorems for their actions. Our second purpose is to demonstrate some the many interesting applications that ergodic theorems with a rate of convergence have in a variety of problems. We will start by a discussion of property $T$ and show how to extend the spectral estimates it provides considerably ...

37A30 ; 37A15 ; 37P55 ; 11F70

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- 200 p.
ISBN 978-0-521-66030-3

London mathematical society lecture note series , 0269

Localisation : Collection 1er étage

espace homogène # action de groupe # théorie ergodique # dynamique topologique # conjecture d'Oppenheim # conjecture de Raghunathan # théorème d'annulation de Howe-Moore # groupe de Lie semi-simple # flot géodésic

11E99 ; 22E20 ; 22F30 ; 37A30 ; 37C85 ; 37A15

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- 225 p.
ISBN 978-3-7643-7091-6

Monografie matematyczne , 0064

Localisation : Ouvrage RdC (WALC)

système dynamique # groupe #pseudo-groupe # dynamique de foliation # fractale # entropie # système dynamique complexe # mesure invariante # dimension de Hausdorff

28A80 ; 28D20 ; 37A15

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- 109 p.
ISBN 978-0-8218-3771-9

Memoirs of the american mathematical society , 0833

Localisation : Collection 1er étage

théorie des ensembles # ensemble de Borel # théorie de la mesure # théorie ergodique # rigidité

03E15 ; 28D15 ; 37A15 ; 37A20

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