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We show that for various natural classes of groups and appropriately defined K- and L-theoretic functors, injectivity or bijectivity of the assembly map follows from the Isomorphism Conjecture being true for acyclic groups lying within that…

K-Theory and Homology · Mathematics 2017-03-07 Crichton Ogle , Shengkui Ye

We prove the K- and L-theoretic Farrell-Jones Conjecture (with coefficients in additive categories) for GL_n(Z).

K-Theory and Homology · Mathematics 2013-05-08 Arthur Bartels , Wolfgang Lueck , Holger Reich , Henrik Rueping

In this article we study a coarse version of the K-theoretic Farrell-Jones conjecture we call coarse or bounded isomorphism conjecture. With techniques that have already been used to prove the Farrell-Jones conjecture for hyperbolic groups…

K-Theory and Homology · Mathematics 2021-08-24 Markus Zeggel

We introduce the Farrell-Jones Conjecture with coefficients in an additive category with G-action. This is a variant of the Farrell-Jones Conjecture about the algebraic K- or L-Theory of a group ring RG. It allows to treat twisted group…

K-Theory and Homology · Mathematics 2007-05-23 Arthur Bartels , Holger Reich

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-Theory and Homology · Mathematics 2015-01-29 Laurent Bartholdi

We observe an inductive structure in a large class of Artin groups and exploit this information to deduce the Farrell-Jones isomorphism conjecture for several classes of Artin groups of finite real, complex and affine types.

Group Theory · Mathematics 2024-03-25 S. K. Roushon

In this article we study a coarse version of the $K$-theoretic Farrell--Jones conjecture we call coarse or bounded isomorphism conjecture. Using controlled category theory we are able to translate this conjecture for asymptotically faithful…

K-Theory and Homology · Mathematics 2021-04-01 Markus Zeggel

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-Theory and Homology · Mathematics 2025-07-16 Wolfgang Lueck

We prove the fibred Farrell--Jones Conjecture (FJC) in $A$-, $K$-, and $L$-theory for a large class of suspensions of relatively hyperbolic groups, as well as for all suspensions of one-ended hyperbolic groups. We deduce two applications:…

K-Theory and Homology · Mathematics 2026-03-03 Naomi Andrew , Yassine Guerch , Sam Hughes

We investigate when Isomorphism Conjectures, such as the ones due to Baum-Connes, Bost and Farrell-Jones, are stable under colimits of groups over directed sets (with not necessarily injective structure maps). We show in particular that…

K-Theory and Homology · Mathematics 2007-05-23 Arthur Bartels , Siegfried Echterhoff , Wolfgang Lueck

The orbifold braid groups of two dimensional orbifolds were defined in [1] (arXiv:math/9907194) to understand certain Artin groups as subgroups of some suitable orbifold braid groups. We studied orbifold braid groups in some more detail in…

Group Theory · Mathematics 2023-09-08 S. K. Roushon

In this paper we generalize the notion of strongly poly-free group to a larger class of groups, we call them strongly poly-surface groups and prove that the Fibered Isomorphism Conjecture of Farrell and Jones corresponding to the stable…

Geometric Topology · Mathematics 2014-10-01 S. K. Roushon

We discuss an analogon to the Farrell-Jones Conjecture for homotopy algebraic K-theory. In particular, we prove that if a group G acts on a tree and all isotropy groups satisfy this conjecture, then G satisfies this conjecture. This result…

K-Theory and Homology · Mathematics 2007-05-23 Arthur Bartels , Wolfgang Lueck

We construct a Dirac morphism and prove that if this Dirac morphism is invertible, then the isomorphism conjecture for non-connective algebraic K-theory holds true.

Algebraic Topology · Mathematics 2012-01-09 Marcelo Gomez Morteo

We present the status of the Farrell-Jones Conjecture for algebraic K-theory for a group G and arbitrary coefficient rings R. We add new groups for which the conjecture is known to be true and study inheritance properties. We discuss new…

K-Theory and Homology · Mathematics 2007-05-23 Arthur Bartels , Wolfgang Lueck , Holger Reich

The Isomorphism Conjecture is a conceptional approach towards a calculation of the algebraic K-theory of a group ring RG, where G is an infinite group. In this paper we prove the conjecture in dimensions n<2 for fundamental groups of closed…

Algebraic Topology · Mathematics 2007-05-23 Arthur Bartels , Tom Farrell , Lowell Jones , Holger Reich

We show that the Farrell-Jones Conjecture holds for fundamental groups of graphs of groups with abelian vertex groups. As a special case, this shows that the conjecture holds for generalized Baumslag-Solitar groups.

Group Theory · Mathematics 2014-04-09 Giovanni Gandini , Sebastian Meinert , Henrik Rueping

This article will explore the K- and L-theory of group rings and their applications to algebra, geometry and topology. The Farrell-Jones Conjecture characterizes K- and L-theory groups. It has many implications, including the Borel and…

Geometric Topology · Mathematics 2010-03-29 Wolfgang Lueck

The K-theoretic Farrell-Jones isomorphism conjecture for a group ring $R[G]$ has been proved for several groups. The toolbox for proving the Farrell-Jones conjecture for a given group depends on some geometric properties of the group as it…

K-Theory and Homology · Mathematics 2019-05-23 Salvador Sierra-Murillo

Let G be a cocompact lattice in a virtually connected Lie group or the fundamental group of a 3-manifold. We prove the K-theoretic Farrell-Jones Conjecture (up to dimension one) and the L-theoretic Farrell-Jones Conjecture for G, where we…

Geometric Topology · Mathematics 2013-07-02 Arthur Bartels , F. T. Farrell , Wolfgang Lueck