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Related papers: The Dehn function of Baumslag's Metabelian Group

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We prove that groups in a certain class of metabelian locally compact groups, have quadratic Dehn function. As an application, we embed the solvable Baumslag-Solitar groups into finitely presented metabelian groups with quadratic Dehn…

Group Theory · Mathematics 2011-01-25 Yves Cornulier , Romain Tessera

We show the connection between the relative Dehn function of a finitely generated metabelian group and the distortion function of a corresponding subgroup in the wreath product of two free abelian groups of finite rank. Further, we show…

Group Theory · Mathematics 2021-04-27 Wenhao Wang

We construct the first examples of finitely presented groups with quadratic Dehn function containing a finitely generated infinite torsion subgroup. These examples are "optimal" in the sense that the Dehn function of any such finitely…

Group Theory · Mathematics 2020-10-13 Francis Wagner

We construct the first examples of finitely presented groups with cubic Dehn function containing a finitely generated infinite torsion subgroup. Moreover, we show that any infinite free Burnside group with sufficiently large odd exponent…

Group Theory · Mathematics 2020-01-13 Francis Wagner

In this paper, we compute an upper bound for the Dehn function of a finitely presented metabelian group. In addition, we prove that the same upper bound works for the relative Dehn function of a finitely generated metabelian group. We also…

Group Theory · Mathematics 2022-10-27 Wenhao Wang

We show that the Dehn function of the handlebody group is exponential in any genus $g\geq 3$. On the other hand, we show that the handlebody group of genus $2$ is cubical, biautomatic, and therefore has a quadratic Dehn function.

Group Theory · Mathematics 2018-05-01 Ursula Hamenstädt , Sebastian Hensel

We address the problem of which functions can arise as Dehn functions of K\"ahler groups. We explain why there are examples of K\"ahler groups with linear, quadratic, and exponential Dehn function. We then proceed to show that there is an…

Geometric Topology · Mathematics 2019-06-10 Claudio Llosa Isenrich , Romain Tessera

We prove that the Dehn function of a group of Stallings that is finitely presented but not of type F_3 is quadratic. To appear in Geometric and Functional Analysis.

Group Theory · Mathematics 2012-05-16 Will Dison , Murray Elder , Tim Riley , Robert Young

We prove that Thompson's group $T$ and, more generally, all the Higman-Thompson groups $T_n$ have quadratic Dehn function.

Group Theory · Mathematics 2025-07-11 Matteo Migliorini

We study the Dehn function of connected Lie groups. We show that this function is always exponential or polynomially bounded, according to the geometry of weights and of the 2-cohomology of their Lie algebras. Our work, which also addresses…

Group Theory · Mathematics 2017-07-11 Yves Cornulier , Romain Tessera

It is known that there is no finitely presented group for which the Dehn function lies asymptotically strictly between linear and quadratic functions. This work presents an example of a semigroup that has Dehn function equivalent to $n \log…

Group Theory · Mathematics 2024-04-29 Roman Repeev

We prove that Abels' group over an arbitrary nondiscrete locally compact field has a quadratic Dehn function. As applications, we exhibit connected Lie groups and polycyclic groups whose asymptotic cones have uncountable abelian fundamental…

Group Theory · Mathematics 2014-03-07 Yves Cornulier , Romain Tessera

We construct examples of finitely presented simple groups whose Dehn functions are at least exponential. To the best of our knowledge, these are the first such examples known. Our examples arise from R\"over-Nekrashevych groups, using…

Group Theory · Mathematics 2024-07-12 Matthew C. B. Zaremsky

In this paper it is proved that if a finitely presented group acts properly discontinuously, cocompactly and by isometries on a simply connected Riemannian manifold, then the two Dehn functions, of the group and the manifold, respectively,…

dg-ga · Mathematics 2008-02-03 Jose Burillo

We prove that the Bridson-Dison group has quartic Dehn function, thereby providing the first precise computation of the Dehn function of a subgroup of a direct product of free groups with super-quadratic Dehn function. We also prove that…

Given a finitely presented group $G$ and a surjective homomorphism $G\to \mathbb{Z}^n$ with finitely presented kernel $K$, we give an upper bound on the Dehn function of $K$ in terms of an area-radius pair for $G$. As a consequence we…

Group Theory · Mathematics 2024-10-31 Claudio Llosa Isenrich

We introduce two new types of Dehn functions of group presentations which seem more suitable (than the standard Dehn function) for infinite group presentations and prove the fundamental equivalence between the solvability of the word…

Group Theory · Mathematics 2009-02-10 R. I. Grigorchuk , S. V. Ivanov

In this note, we study the notion of random Dehn function and compute an asymptotic upper bound for finitely presented acylindrically hyperbolic groups whose Dehn function is at most polynomial. By showing that in these cases, if the group…

Group Theory · Mathematics 2025-08-22 Jerónimo García-Mejía , Antoine Goldsborough

We prove that if a finitely presented group acts properly discontinuously, cocompactly and by isometries on a simply connected Riemannian manifold, then the Dehn function of the group and the corresponding filling function of the manifold…

Group Theory · Mathematics 2007-05-23 Jose Burillo , Jennifer Taback

We show that the conjugator length function of the Baumslag-Gersten group is bounded above and below by a tower of exponentials of logarithmic height -- in particular it grows faster than any tower of exponentials of fixed height. We…

Group Theory · Mathematics 2025-07-30 Conan Gillis
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