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Related papers: The Baum-Connes conjecture for hyperbolic groups

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This paper gives a proof of the Baum-Connes conjecture with coefficients for hyperbolic groups. More precisely the injectivity of the Baum-Connes map was established by Kasparov and Skandalis and we prove the surjectivity.

Operator Algebras · Mathematics 2012-01-24 Vincent Lafforgue

We study a group which is hyperbolic relative to a finite family of infinite subgroups. We show that the group satisfies the coarse Baum-Connes conjecture if each subgroup belonging to the family satisfies the coarse Baum-Connes conjecture…

K-Theory and Homology · Mathematics 2014-10-09 Tomohiro Fukaya , Shin-ichi Oguni

Bourbaki seminar 1062, October 2012.

K-Theory and Homology · Mathematics 2012-11-27 Michael Puschnigg

We prove the Borel Conjecture for a class of groups containing word-hyperbolic groups and groups acting properly, isometrically and cocompactly on a finite dimensional CAT(0)-space.

Geometric Topology · Mathematics 2010-03-26 Arthur Bartels , Wolfgang Lueck

We give a new proof of some cases of the Baum-Connes conjecture along the lines of a proof of the Farrell-Jones conjecture.

Algebraic Topology · Mathematics 2013-03-05 Fabian Lenhardt

We prove the K-theoretic Farrell-Jones Conjecture for hyperbolic groups with (twisted) coefficients in any associative ring with unit.

K-Theory and Homology · Mathematics 2009-11-13 Arthur Bartels , Wolfgang Lueck , Holger Reich

We generalize the proof of the Farrell-Jones conjecture for CAT(0)-groups to a larger class of groups in particular also containing all hyperbolic groups. This way we give a unified proof for both classes of groups.

Algebraic Topology · Mathematics 2017-08-25 Daniel Kasprowski , Henrik Rueping

We construct a strongly bolic metric for a certain class of relatively hyperbolic groups, which includes those with CAT(0) parabolics and virtually abelian parabolics. If we further assume that the parabolics satisfy (RD), applying a…

Group Theory · Mathematics 2025-12-25 Hermès Lajoinie-Dodel

In this paper, we introduce a notion of stable coarse algebras for metric spaces with bounded geometry, and formulate the twisted coarse Baum--Connes conjecture with respect to stable coarse algebras. We prove permanence properties of this…

Operator Algebras · Mathematics 2026-05-05 Jintao Deng , Ryo Toyota

By deploying dense subalgebras of $\ell^1(G)$ we generalize the Bass conjecture in terms of Connes' cyclic homology theory. In particular, we propose a stronger version of the $\ell^1$-Bass Conjecture. We prove that hyperbolic groups…

K-Theory and Homology · Mathematics 2011-10-05 R. Ji , C. Ogle , B. Ramsey

Let F be a global field, A its ring of adeles, G a reductive group over F. We prove the Baum-Connes conjecture for the adelic group G(A).

K-Theory and Homology · Mathematics 2009-10-31 Paul Baum , Stephen Millington , Roger Plymen

We prove the Baum--Connes conjecture with arbitrary coefficients for some classes of groups: (1) Linear algebraic groups over a non-archimedean local field. (2) Linear algebraic groups over the adeles of a global field k, provided that at…

K-Theory and Homology · Mathematics 2019-04-08 Maarten Solleveld

We survey the known results regarding the boundaries of word-hyperbolic groups.

Group Theory · Mathematics 2007-05-23 Ilya Kapovich , Nadia Benakli

For a group G relatively hyperbolic to a family of residually finite groups satisfying the Farrell-Jones conjecture, we reduce the solution of the Farrell-Jones conjecture for G to the case of certain nice cyclic extensions in G.

Group Theory · Mathematics 2013-10-29 Yago Antolín , Giovanni Gandini

We make an exposition of the proof of the Baum-Connes conjecture for the infinite dihedral group following the ideas of Higson and Kasparov.

K-Theory and Homology · Mathematics 2025-03-24 Eugenia Ellis , Emanuel Rodríguez Cirone , Gisela Tartaglia

We introduce a coarse flow space for relatively hyperbolic groups and use it to verify a regularity condition for the action of relatively hyperbolic groups on their boundaries. As an application the Farrell-Jones Conjecture for relatively…

Geometric Topology · Mathematics 2019-02-20 Arthur Bartels

We discuss the notion of the universal relatively hyperbolic structure on a group which is used in order to characterize relatively hyperbolic structures on the group. We also study relations between relatively hyperbolic structures on a…

Group Theory · Mathematics 2012-05-11 Yoshifumi Matsuda , Shin-ichi Oguni , Saeko Yamagata

In this paper, we state two combination theorems for relatively quasiconvex subgroups in a relatively hyperbolic group. Applications are given to the separability of double cosets of certain relatively quasiconvex subgroups and the…

Group Theory · Mathematics 2013-01-01 Wenyuan Yang

Let G be a group which is hyperbolic relative to a collection of subgroups A, and it is also hyperbolic relative to a collection of subgroups B. Suppose that the collection A contains B. We characterize, for subgroups of G, when…

Group Theory · Mathematics 2011-05-03 Eduardo Martinez-Pedroza

We show that a group that is hyperbolic relative to strongly shortcut groups is itself strongly shortcut, thus obtaining new examples of strongly shortcut groups. The proof relies on a result of independent interest: we show that every…

Group Theory · Mathematics 2023-10-24 Nima Hoda , Suraj Krishna M S
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