Amenable isometry groups of Hadamard spaces, Mathematische Annalen, vol.312, issue.1, pp.183-195, 1998. ,
DOI : 10.1007/s002080050218
Warped products of Hadamard spaces, manuscripta mathematica, vol.96, issue.4, pp.487-505, 1998. ,
DOI : 10.1007/s002290050078
Curvature bounds for warped products of metric spaces, Geometrical and Functional Analysis GAFA, vol.14, issue.6, pp.1143-1181, 2004. ,
DOI : 10.1007/s00039-004-0487-2
Boundary amenability for word hyperbolic groups and an application to smooth dynamics of simple groups, Topology, vol.33, issue.4, pp.765-783, 1994. ,
Amenable groupoids, volume 36 of Monographies de L'Enseignement Mathématique [Monographs of L'Enseignement Mathématique, Enseignement Mathématique, 2000. ,
Amenable actions of groups, Transactions of the American Mathematical Society, vol.344, issue.2, pp.803-822, 1994. ,
DOI : 10.1090/S0002-9947-1994-1250814-5
¨ Uber eine Verallgemeinerung der Riemannschen Geometrie, Schr. Forschungsinst . Math, vol.1, pp.33-84, 1957. ,
Moyennabilité et Courbure : G-espaces boréliens et espaces CAT(0), 2010. ,
A short course on spectral theory, Graduate Texts in Mathematics, vol.209, 2002. ,
DOI : 10.1007/b97227
Lectures on spaces of nonpositive curvature, 1995. ,
DOI : 10.1007/978-3-0348-9240-7
Kazhdan's property (T), volume 11 of New Mathematical Monographs, 2008. ,
Busemann spaces of aleksandrov curvature bounded above, 2001. ,
Superrigidity, weyl groups, and actions on the circle, p.605276 ,
Manifolds of nonpositive curvature, Progress in Mathematics Birkhäuser Boston Inc, vol.61, 1985. ,
DOI : 10.1007/978-1-4684-9159-3
Metric spaces of non-positive curvature, of Grundlehren der Mathematischen Wissenschaften [Fundamental Principles of Mathematical Sciences, 1999. ,
Equivariant embeddings of trees into hyperbolic spaces, Int. Math. Res. Not, issue.22, pp.1331-1369, 2005. ,
Centers of Convex Subsets of Buildings, Annals of Global Analysis and Geometry, vol.86, issue.3, pp.201-209, 2005. ,
DOI : 10.1007/s10455-005-7277-4
CAT(-1)-spaces, divergence groups and their commensurators, J ,
Continuous bounded cohomology and applications to rigidity theory, Geometric And Functional Analysis, vol.12, issue.2, pp.219-280, 2002. ,
DOI : 10.1007/s00039-002-8245-9
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.517.83
Manifolds of negative curvature, Transactions of the American Mathematical Society, vol.145, pp.1-49, 1969. ,
DOI : 10.1090/S0002-9947-1969-0251664-4
Density and maximality of arithmetic subgroups, J. Reine Angew. Math, vol.224, pp.78-89, 1966. ,
Geodesics in Hadamard spaces. Algebra i Analiz, pp.93-123, 1998. ,
On conditions under which isometries have bounded orbits, Colloq. Math, vol.48, issue.2, pp.219-227, 1984. ,
Amenable groups and Hadamard spaces with a totally disconnected isometry group, Commentarii Mathematici Helvetici, vol.84, issue.2, pp.437-455, 2009. ,
DOI : 10.4171/CMH/168
URL : https://hal.archives-ouvertes.fr/hal-00146369
Pierre Julg, and Alain Valette. Groups with the Haagerup property, Progress in Mathematics, vol.197, 2001. ,
At infinity of finite-dimensional CAT(0) spaces, Mathematische Annalen, vol.19, issue.4, pp.1-21, 2010. ,
DOI : 10.1007/s00208-009-0381-1
Manifolds of semi-negative curvature, Proceedings of the London Mathematical Society, vol.100, issue.3, pp.670-704, 2010. ,
DOI : 10.1112/plms/pdp042
Isometry groups of non-positively curved spaces: discrete subgroups, Journal of Topology, vol.72, issue.1, pp.701-746, 2009. ,
DOI : 10.1112/jtopol/jtp027
Isometry groups of non-positively curved spaces: structure theory, Journal of Topology, vol.13, issue.1, pp.661-700, 2009. ,
DOI : 10.1112/jtopol/jtp026
Champs mesurables et multisections, Ann. Inst. H. Poincaré Sect. B (N.S.), vol.12, issue.1, pp.11-42, 1976. ,
Amenable semigroups, Illinois J. Math, vol.1, pp.509-544, 1957. ,
Isometric Group Actions on Hilbert Spaces: Structure of Orbits, Journal canadien de math??matiques, vol.60, issue.5, pp.1001-1009, 2008. ,
DOI : 10.4153/CJM-2009-044-0
URL : https://hal.archives-ouvertes.fr/hal-00374036
Les algèbres d'opérateurs dans l'espace hilbertien (algèbres de von Neumann ) Les Grands Classiques Gauthier-Villars, Gauthier-Villars Great Classics]. ´ Editions Jacques Gabay, 1996. ,
Classification des L ? -algèbres semi-simples réelles séparables, C. R. Acad ,
Classical Banach-Lie algebras and Banach-Lie groups of operators in Hilbert space, Lecture Notes in Mathematics, vol.285, 1972. ,
Topics in geometric group theory. Chicago Lectures in Mathematics, 2000. ,
Structure of manifolds of nonpositive curvature, Lecture Notes in Math, vol.8, issue.4, pp.86-153, 1984. ,
DOI : 10.2307/1970273
Geometry of nonpositively curved manifolds. Chicago Lectures in Mathematics, 1996. ,
A setting for global analysis Representations of ? -algebras, locally compact groups, and Banach ? -algebraic bundles Basic representation theory of groups and algebras, Michael Edelstein. On non-expansive mappings of Banach spaces, pp.439-447751, 1964. ,
Distances hilbertiennes invariantes sur un espace homog??ne, Annales de l???institut Fourier, vol.24, issue.3, pp.171-217120, 1974. ,
DOI : 10.5802/aif.525
Fixed point sets of parabolic isometries of CAT(0)-spaces, Commentarii Mathematici Helvetici, vol.81, issue.2, pp.305-335, 2006. ,
DOI : 10.4171/CMH/54
Boundary theory and stochastic processes on homogeneous spaces, Harmonic analysis on homogeneous spaces (Proc. Sympos, pp.193-229, 1972. ,
DOI : 10.1090/pspum/026/0352328
Sur les groupes hyperboliques d'après Mikhael Gromov, Papers from the Swiss Seminar on Hyperbolic Groups, 1988. ,
DOI : 10.1007/978-1-4684-9167-8
Superrigidity, generalized harmonic maps and uniformly convex spaces Hyperbolic groups Asymptotic invariants of infinite groups, Essays in group theory Geometric group theoryHel01] Sigurdur Helgason. Di?erential geometry, Lie groups, and symmetric spaces, pp.1524-1550, 1987. ,
Actions de relations d'´ equivalence sur les champs d'espaces métriques Actions de relation d'´ equivalence sur les champs d'espaces métriques CAT(0), 2010. ,
[Kai94] Vadim A. Kaimanovich. The Poisson boundary of hyperbolic groups, Kaimanovich. Double ergodicity of the Poisson boundary and applications to bounded cohomology, pp.103-17459, 1875. ,
Non-expanding maps and Busemann functions Ergodic Theory Dynam, Systems, vol.21, issue.5, pp.1447-1457, 2001. ,
On the dynamics of isometries, Geometry & Topology, vol.9, issue.4, pp.2359-2394, 2005. ,
DOI : 10.2140/gt.2005.9.2359
Rigidity of quasi-isometries for symmetric spaces and Euclidean buildings, Inst. HautesÉtudesHautes´HautesÉtudes Sci. Publ. Math, issue.86, pp.115-197, 1997. ,
The local structure of length spaces with curvature bounded above, Mathematische Zeitschrift, vol.231, issue.3, pp.409-456, 1999. ,
DOI : 10.1007/PL00004738
Riemannian geometry, volume 1 of de Gruyter Studies in Mathematics, 1995. ,
A Multiplicative Ergodic Theorem and Nonpositively Curved Spaces, Communications in Mathematical Physics, vol.208, issue.1, pp.107-123, 1999. ,
DOI : 10.1007/s002200050750
Some Groups Having Only Elementary Actions on Metric Spaces with Hyperbolic Boundaries, Geometriae Dedicata, vol.104, issue.1, pp.119-137, 2004. ,
DOI : 10.1023/B:GEOM.0000022949.67521.0c
The homotopy type of the unitary group of Hilbert space, Topology, vol.3, pp.19-30, 1965. ,
Random Walks on Discrete Groups: Boundary and Entropy, The Annals of Probability, vol.11, issue.3, pp.457-490, 1983. ,
DOI : 10.1214/aop/1176993497
Fundamentals of di?erential geometry, volume 191 of Graduate Texts in Mathematics, 1999. ,
Nonpositive curvature: A geometrical approach to Hilbert???Schmidt operators, Differential Geometry and its Applications, vol.25, issue.6, pp.679-700, 2007. ,
DOI : 10.1016/j.difgeo.2007.06.016
URL : http://doi.org/10.1016/j.difgeo.2007.06.016
A characterization of irreducible symmetric spaces and Euclidean buildings of higher rank by their asymptotic geometry, 2000. ,
Jung's theorem for Alexandrov spaces of curvature bounded above, Annals of Global Analysis and Geometry, vol.15, issue.3, pp.263-275, 1997. ,
DOI : 10.1023/A:1006574402955
Discrete subgroups of semisimple Lie groups, Ergebnisse der Mathematik und ihrer Grenzgebiete (3) [Results in Mathematics and Related Areas, 1991. ,
General di?erential geometries and related topics, Bull. Amer. Math. Soc, vol.45, pp.529-563, 1939. ,
Infinite Dimensional Differential Metrics with Constant Curvature, Proceedings of the National Academy of Sciences, vol.34, issue.1, pp.17-21, 1948. ,
DOI : 10.1073/pnas.34.1.17
URL : https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1062904/pdf
Continuous bounded cohomology of locally compact groups, Lecture Notes in Mathematics, vol.1758, 2001. ,
DOI : 10.1007/b80626
Superrigidity for irreducible lattices and geometric splitting, Comptes Rendus Mathematique, vol.340, issue.3, pp.781-814, 2006. ,
DOI : 10.1016/j.crma.2004.12.023
URL : http://arxiv.org/abs/math/0504241
Strong rigidity of locally symmetric spaces, Annals of Mathematics Studies, issue.78, 1973. ,
Cocycle superrigidity and bounded cohomology for negatively curved spaces, Journal of Differential Geometry, vol.67, issue.3, pp.395-455, 2004. ,
DOI : 10.4310/jdg/1102091355
URL : http://projecteuclid.org/download/pdf_1/euclid.jdg/1102091355
IntroductionàIntroduction`Introductionà la théorie des groupes de Lie classiques. Collection Méthodes, 1986. ,
Topological Transformation Groups. I, The Annals of Mathematics, vol.41, issue.4, 1955. ,
DOI : 10.2307/1968858
Superrigidité géométique et applications harmoniques In GéométriesGéométriesà courbure négative ou nulle, groupes discrets et rigidités, Sémin. Congr, vol.18, pp.373-420, 2009. ,
Asymptotic behavior of contractions in Hilbert space, Israel J. Math, vol.9, pp.235-240, 1971. ,
Cours d'algèbre, volume 18 of Collection de l' ´ Ecole Normale Supérieure de Jeunes Filles [Collection of thé Ecole Normale, 1982. ,
Riemannian geometry, volume 171 of Graduate Texts in Mathematics, 2006. ,
Spherical functions on SO0(p, q)/SO(p) ? SO(q), Canad. Math. Bull, vol.42, issue.4, pp.486-498, 1999. ,
Infinite-dimensional spaces with bounded curvature, Sibirsk. Mat. Zh, vol.36, issue.5, pp.1167-1178, 1995. ,
Probability measures on metric spaces of nonpositive curvature, Contemp. Math, vol.338, pp.357-390, 2003. ,
DOI : 10.1090/conm/338/06080
The density at infinity of a discrete group of hyperbolic motions, Publications math??matiques de l'IH??S, vol.132, issue.1, pp.171-202, 1979. ,
DOI : 10.1007/BF02684773
Mostow's decomposition theorem for l*-groups and applications to ane coadjoint orbits and stable manifolds ,
Groups of automorphisms of Borel spaces, Trans. Amer. Math. Soc, vol.109, pp.191-220, 1963. ,
Amenable ergodic group actions and an application to Poisson boundaries of random walks, Journal of Functional Analysis, vol.27, issue.3, pp.350-372, 1978. ,
DOI : 10.1016/0022-1236(78)90013-7
Ergodic theory and semisimple groups, Monographs in Mathematics, vol.81, 1984. ,
DOI : 10.1007/978-1-4684-9488-4