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We prove the Farrell-Jones Conjecture for (non-connective) $A$-theory with coefficients and finite wreath products for hyperbolic groups, CAT(0)-groups, cocompact lattices in almost connected Lie groups and fundamental groups of manifolds…

Geometric Topology · Mathematics 2018-10-03 Nils-Edvin Enkelmann , Wolfgang Lück , Malte Pieper , Mark Ullmann , Christoph Winges

We prove that the Center Conjecture passes to the Artin groups whose defining graphs are cones, if the conjecture holds for the Artin group defined on the set of the cone points. In particular, it holds for every Artin group whose defining…

Group Theory · Mathematics 2025-02-26 Kasia Jankiewicz , MurphyKate Montee

We determine which of the finite-type Artin groups are locally indicable, and compute presentations for their commutator subgroups.

Group Theory · Mathematics 2007-05-23 Jamie Mulholland , Dale Rolfsen

We prove the $\Sigma^1$-conjecture for two families of Artin groups: Artin groups such that there exists a prime number $p$ dividing $\frac{l(e)}{2}$ for every edge $e$ with even label $>2$ and balanced Artin groups. The family of balanced…

Group Theory · Mathematics 2025-07-15 Marcos Escartín Ferrer

We prove that triangle Artin groups of the type $A_{2,3,2n}$ are residually finite for all $n\geq4$. This requires splitting these triangle Artin groups as graphs of groups and then proving that each of these graphs of groups has finite…

Group Theory · Mathematics 2024-12-11 Greyson Meyer

We introduce a new class of finite groups, called weak almost monomial, which generalize two different notions of "almost monomial" groups, and we prove it is closed under taking factor groups and direct products. Let $K/\mathbb Q$ be a…

Number Theory · Mathematics 2024-09-10 Mircea Cimpoeas

A result of Allock [1](arXiv:math/9907194) states that certain orbifold braid groups contain Artin groups of type $D_n$, $\tilde{B}_n$ and $\tilde{D}_n$ as finite index subgroups. The underlying orbifolds have at most two cone points of…

Group Theory · Mathematics 2023-12-19 Jonas Flechsig

A number of properties of spherical Artin groups extend to Garside groups, defined as the groups of fractions of monoids where least common multiples exist, there is no nontrivial unit, and some additional finiteness conditions are…

Group Theory · Mathematics 2007-05-23 Patrick Dehornoy

Abstract. We address the conjecture which states that an intersection of parabolic subgroups of an Artin-Tits group is a parabolic subgroup. We prove that the conjecture is equivalent to a, a priori, weaker conjecture. We also prove the…

Group Theory · Mathematics 2022-07-15 Eddy Godelle

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 extend the notions of quasi-monomial groups and almost monomial groups, in the framework of supercharacter theories, and we study their connection with Artin's conjecture regarding the holomorphy of Artin $L$-functions.

Number Theory · Mathematics 2024-05-01 Mircea Cimpoeas , Alexandru F. Radu

This paper computes the Jones polynomial and the invariants obstructing cosmetic surgery which are derived from it for two infinite families of knots, proving they satisfy the Purely Cosmetic Surgery Conjecture. Both the method of…

Geometric Topology · Mathematics 2026-01-13 F. M. Brady

In this note we show that an Artin stack with finite inertia stack is etale locally isomorphic to the quotient of an affine scheme by an action of a general linear group.

Algebraic Geometry · Mathematics 2010-07-05 Isamu Iwanari

Dual presentations of Coxeter groups have recently led to breakthroughs in our understanding of affine Artin groups. In particular, they led to the proof of the $K(\pi, 1)$ conjecture and to the solution of the word problem. Will the "dual…

Group Theory · Mathematics 2025-12-30 Giovanni Paolini

We find finite presentations for the automorphism group of the Artin pure braid group and the automorphism group of the pure braid group associated to the full monomial group.

Group Theory · Mathematics 2019-08-27 Daniel C. Cohen

We provide two proofs that the conjecture of Artin-Tate for a fibered surface is equivalent to the conjecture of Birch-Swinnerton-Dyer for the Jacobian of the generic fibre. As a byproduct, we obtain a new proof of a theorem of Geisser…

Algebraic Geometry · Mathematics 2025-05-14 S. Lichtenbaum , N. Ramachandran , T. Suzuki

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 obtain a criterion for the automorphism group of an affine toric variety to be connected in combinatorial terms and in terms of the divisor class group of the variety. The component group of the automorphism group of a non-degenerate…

Algebraic Geometry · Mathematics 2025-03-25 Veronika Kikteva

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

Garside groups are combinatorial generalizations of braid groups which enjoy many nice algebraic, geometric, and algorithmic properties. In this article we propose a method for turning the direct product of a group $G$ by $\mathbb{Z}$ into…

Group Theory · Mathematics 2024-10-17 Thomas Haettel , Jingyin Huang
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