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Related papers: Some virtually poly-free Artin groups

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In this note we prove that the affine Artin group of type $\widetilde B_n$ is virtually poly-free. The proof also gives another solution of the $K(\pi, 1)$ problem for $\widetilde B_n$.

Group Theory · Mathematics 2025-10-31 Li Li , S. K. Roushon

We prove that even Artin groups of FC type are poly-free and residually finite.

Group Theory · Mathematics 2017-05-17 Ruben Blasco-Garcia , Conchita Martinez-Perez , Luis Paris

We prove that any large even Artin group is poly-free and that any even Artin group based on a triangle graph is also poly-free.

Group Theory · Mathematics 2020-09-21 Ruben Blasco-Garcia

In this note we give an upper bound for the virtually cyclic dimension of any normally poly-free group in terms of its length. In particular, this implies that virtually even Artin groups of FC-type admit a finite dimensional model for the…

Group Theory · Mathematics 2023-11-20 Rita Jiménez Rolland , Porfirio L. León Álvarez

We show that the class of large-type Artin groups is invariant under isomorphism, in stark contrast with the corresponding situation for Coxeter groups. We obtain this result by providing a purely algebraic characterisation of large-type…

Group Theory · Mathematics 2023-05-11 Alexandre Martin , Nicolas Vaskou

We show that every right-angled Artin group AG defined by a graph G of finite chromatic number is poly-free with poly-free length bounded between the clique number and the chromatic number of G. Further, a characterization of all…

Group Theory · Mathematics 2007-05-23 Susan Hermiller , Zoran Sunik

We prove several results on the model theory of Artin groups, focusing on Artin groups which are ``far from right-angled Artin groups''. The first result is that if $\mathcal{C}$ is a class of Artin groups whose irreducible components are…

Logic · Mathematics 2025-07-30 Alberto Cassella , Gianluca Paolini , Giovanni Paolini

This article resolves several long-standing conjectures about Artin groups of euclidean type. In particular, we prove that every irreducible euclidean Artin group is a torsion-free centerless group with a decidable word problem and a…

Group Theory · Mathematics 2017-07-21 Jon McCammond , Robert Sulway

In this article we construct a piecewise Euclidean, non-positively curved 2-complex for the 3-generator Artin groups of large type. As a consequence we show that these groups are biautomatic. A slight modification of the proof shows that…

Group Theory · Mathematics 2007-05-23 Thomas Brady , Jonathan P. McCammond

We give a conjectural classification of virtually cocompactly cubulated Artin-Tits groups (i.e. having a finite index subgroup acting geometrically on a CAT(0) cube complex), which we prove for all Artin-Tits groups of spherical type, FC…

Group Theory · Mathematics 2020-04-14 Thomas Haettel

We prove that for every prime $p$ algebraically clean graphs of groups are virtually residually $p$-finite and cohomologically $p$-complete. We also prove that they are cohomologically good. We apply this to certain $2$-dimensional Artin…

Group Theory · Mathematics 2023-12-27 Kasia Jankiewicz , Kevin Schreve

We prove that acylindrically hyperbolic groups are monotileable. That is, every finite subset of the group is contained in a finite tile. This provides many new examples of monotileable groups, and progress on the question of whether every…

Group Theory · Mathematics 2026-05-14 Joseph MacManus , Lawk Mineh

We define for every affine Coxeter graph a certain factor group of the associated Artin group and prove that some of these groups appear as orbifold fundamental groups of moduli spaces. Examples are the moduli space of nonsingular cubic…

Algebraic Geometry · Mathematics 2007-06-13 Eduard Looijenga

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

We provide two simple proofs of the fact that even Artin groups of FC-type are poly-free which was recently established by R. Blasco-Garcia, C. Mart\'inez-P\'erez and L. Paris. More generally, let $\Gamma$ be a finite simplicial graph with…

Group Theory · Mathematics 2021-08-17 Xiaolei Wu

We study the algebraic structure of the automorphism group of a general right-angled Artin group. We show that this group is virtually torsion-free and has finite virtual cohomological dimension. This generalizes results proved by the…

Group Theory · Mathematics 2008-07-03 Ruth Charney , Karen Vogtmann

We construct virtual fundamental classes of Artin stacks over a Dedekind domain endowed with a perfect obstruction theory.

Algebraic Geometry · Mathematics 2015-07-27 Flavia Poma

We consider the problem of deciding if a group is the fundamental group of a smooth connected complex quasi-projective (or projective) variety using Alexander-based invariants. In particular, we solve the problem for large families of…

Algebraic Geometry · Mathematics 2010-05-31 Enrique Artal Bartolo , Jose Ignacio Cogolludo-Agustin , Daniel Matei

We show that many $2$-dimensional Artin groups are residually finite. This includes $3$-generator Artin groups with labels $\geq 4$ except for $(2m+1, 4,4)$ for any $m\geq 2$. As a first step towards residual finiteness we show that these…

Group Theory · Mathematics 2022-05-10 Kasia Jankiewicz

We prove that two Artin groups of spherical type are isomorphic if and only if their defining Coxeter graphs are the same.

Group Theory · Mathematics 2007-05-23 Luis Paris
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