中文
相关论文

相关论文: The Baum-Connes conjecture, Swan group actions and…

200 篇论文

We reformulate the Baum-Connes conjecture with coefficients by introducing a new crossed product functor for C*-algebras. All confirming examples for the original Baum-Connes conjecture remain confirming examples for the reformulated…

K理论与同调 · 数学 2016-01-20 Paul Baum , Erik Guentner , Rufus Willett

We prove a conjecture of Roe by constructing unified warped cones that violate the coarse Baum-Connes conjecture. Interestingly, the reason for this is probably not what Roe expected, as the obstruction arises in odd rather than even…

K理论与同调 · 数学 2025-05-23 Christos Kitsios , Thomas Schick , Federico Vigolo

The Isomorphism Conjectures are translated into the language of homotopical algebra, where they resemble Thomason's descent theorems.

K理论与同调 · 数学 2007-05-23 Paul Balmer , Michel Matthey

We consider the equivariant K-theory of a real semisimple Lie group which acts on the (complex) flag variety of its complexification group. We construct an assemble map in the framework of KK-theory and then we prove that it is an…

K理论与同调 · 数学 2021-03-09 Zhaoting Wei

We prove the Farrell-Jones conjecture for free-by-cyclic groups. The proof uses recently developed geometric methods for establishing the Farrell-Jones Conjecture.

几何拓扑 · 数学 2021-05-31 Mladen Bestvina , Koji Fujiwara , Derrick Wigglesworth

We study the possibility of applying a finite-dimensionality argument in order to address parts of the Baum-Connes conjecture for finitely generated linear groups. This gives an alternative approach to the results of Guentner, Higson, and…

几何拓扑 · 数学 2007-05-23 Dmitry Matsnev

We develop a generalization of quantitative $K$-theory, which we call controlled $K$-theory. It is powerful enough to study the $K$-theory of crossed product of $C^*$-algebras by action of \'etale groupoids and discrete quantum groups. In…

K理论与同调 · 数学 2017-10-18 Clément Dell'Aiera

We show that the classical Baum-Connes assembly map is quantitatively an isomorphism for a class of lacunary hyperbolic groups, and we explain how to see that this class contains many examples of groups that contain graph sequences of large…

群论 · 数学 2026-05-14 Martin Finn-Sell

We introduce a new variant of the coarse Baum-Connes conjecture designed to tackle coarsely disconnected metric spaces called the boundary coarse Baum-Connes conjecture. We prove this conjecture for many coarsely disconnected spaces that…

K理论与同调 · 数学 2014-07-23 Martin Finn-Sell , Nick Wright

We show that contracting self-similar groups satisfy the Farrell-Jones conjectures as soon as their universal contracting cover is non-positively curved. This applies in particular to bounded self-similar groups. We define, along the way, a…

K理论与同调 · 数学 2015-01-29 Laurent Bartholdi

This is a survey on the Farrell-Jones Conjecture about the algebraic K- and L-theory of groups rings and its applications to algebra, geometry, group theory, and topology.

K理论与同调 · 数学 2025-07-16 Wolfgang Lueck

Bourbaki seminar 1062, October 2012.

K理论与同调 · 数学 2012-11-27 Michael Puschnigg

We prove that if the classical Baum-Connes conjecture in complex K-theory is true (for a given discrete group G), then the conjecture is also true in the real case (for the same group G). The essential ingredients of the proof are the…

算子代数 · 数学 2016-09-07 Paul Baum , Max Karoubi

In this paper, we prove the Farrell-Jones Conjecture for the solvable Baumslag-Solitar groups with coefficients in an additive category. We also extend our results to groups of the form, Z[1/p] semidirect product with any virtually cyclic…

几何拓扑 · 数学 2014-01-13 Tom Farrell , Xiaolei Wu

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.

代数拓扑 · 数学 2017-08-25 Daniel Kasprowski , Henrik Rueping

In this article we give a characterisation of the Baum-Connes assembly map with coefficients. The technical tools needed are the K-theory of C*-categories, and equivariant KK-theory in the world of groupoids.

K理论与同调 · 数学 2007-05-23 Paul D. Mitchener

We formulate a version of Baum-Connes' conjecture for a discrete quantum group, building on our earlier work (\cite{GK}). Given such a quantum group $\cla$, we construct a directed family $\{\cle_F \}$ of $C^*$-algebras ($F$ varying over…

K理论与同调 · 数学 2007-05-23 Debashish Goswami , A. O. Kuku

We study the Fibered Isomorphism Conjecture of Farrell and Jones in L-theory for groups acting on trees. In several cases we prove the conjecture. This includes wreath products of abelian groups and free metabelian groups. We also deduce…

K理论与同调 · 数学 2012-04-30 S. K. Roushon

We construct a Baum--Connes assembly map localised at the unit element of a discrete group $\Gamma$. This morphism, called $\mu_\tau$, is defined in $KK$-theory with coefficients in $\mathbb{R}$ by means of the action of the projection…

算子代数 · 数学 2020-09-10 Paolo Antonini , Sara Azzali , Georges Skandalis

For an extension $1\rightarrow N \rightarrow \Gamma \xrightarrow{q} \Gamma / N \rightarrow 1$ of discrete countable groups, it is known that the Baum-Connes conjecture with coefficients holds for $\Gamma$ if it holds for $\Gamma / N$ and…

算子代数 · 数学 2025-08-26 Jianguo Zhang