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Related papers: Diophantine Problem in Some Metabelian Groups

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We survey solvability of equations in wreath products of groups, and prove that the quadratic diophantine problem is solvable in wreath products of Abelian groups. We consider the related question of determining commutator width, and prove…

Group Theory · Mathematics 2024-10-08 Laurent Bartholdi , Ruiwen Dong , Leon Pernak , Jan Philipp Wächter

For a finitely generated group $G$, the \emph{Diophantine problem} over $G$ is the algorithmic problem of deciding whether a given equation $W(z_1,z_2,\ldots,z_k) = 1$ (perhaps restricted to a fixed subclass of equations) has a solution in…

Group Theory · Mathematics 2023-06-06 Richard Mandel , Alexander Ushakov

In this paper we prove that the Diophantine problem in iterated restricted wreath products $G$ of arbitrary non-trivial free abelian groups $A_1,\ldots, A_k$, $k>1$ of finite ranks is undecidable, i.e., there is no algorithm that given a…

Group Theory · Mathematics 2025-02-14 Olga Kharlampovich , Alexei Miasnikov

We study the Diophantine problem (decidability of finite systems of equations) in different classes of finitely generated solvable groups (nilpotent, polycyclic, metabelian, free solvable, etc), which satisfy some natural…

Group Theory · Mathematics 2020-03-25 Albert Garreta , Alexei Miasnikov , Denis Ovchinnikov

We prove that the Diophantine problem for orientable quadratic equations in free metabelian groups is decidable and furthermore, NP-complete. In the case when the number of variables in the equation is bounded, the problem is decidable in…

Group Theory · Mathematics 2018-04-18 Igor Lysenok , Alexander Ushakov

We prove that the Diophantine problem for spherical quadratic equations in free metabelian groups is solvable and, moreover, NP-complete

Group Theory · Mathematics 2013-04-18 Igor Lysenok , Alexander Ushakov

We show that the Diophantine problem(decidability of equations) is undecidable in free associative algebras over any field and in the group algebras over any field of a wide variety of torsion free groups, including toral relatively…

Logic · Mathematics 2016-06-28 Olga Kharlampovich , Alexei Myasnikov

We show that the Diophantine problem in Thompson's group F is undecidable. Our proof uses the facts that F has finite commutator width and rank 2 abelianisation, then uses similar arguments used by B\"uchi and Senger and Ciobanu and Garreta…

Group Theory · Mathematics 2025-04-21 Luna Elliott , Alex Levine

We study metabelian groups $G$ given by full rank finite presentations $\langle A \mid R \rangle_{\mathcal{M}}$ in the variety $\mathcal{M}$ of metabelian groups. We prove that $G$ is a product of a free metabelian subgroup of rank…

Group Theory · Mathematics 2020-06-12 Albert Garreta , Leire Legarreta , Alexei Miasnikov , Denis Ovchinnikov

We study the Diophantine problem, i.e. the decision problem of solving systems of equations, for some families of one-relator groups, and provide some background for why this problem is of interest. The method used is primarily the…

Group Theory · Mathematics 2022-08-16 Carl-Fredrik Nyberg-Brodda

The Diophantine problem for a monoid $M$ is the decision problem to decide whether any given system of equations has a solution in $M$. In this note, we give a simple example of a context-free, word-hyperbolic, finitely presented, special…

Group Theory · Mathematics 2022-05-03 Carl-Fredrik Nyberg-Brodda

In this paper we study the complexity of solving orientable quadratic equations in wreath products $A\wr B$ of finitely generated abelian groups. We give a classification of cases (depending on genus and other characteristics of a given…

Group Theory · Mathematics 2025-03-05 Alexander Ushakov , Chloe Weiers

We study one-variable equations over the lamplighter group $\MZ_2 \wr \MZ$. While the decidability of arbitrary equations over $L_2$ remains open, we prove that the Diophantine problem for single equations in one variable is decidable. Our…

Group Theory · Mathematics 2026-01-21 Alexander Ushakov , Yankun Wang

We construct a finitely presented group with undecidable word problem and with Dehn function bounded by a quadratic function on an infinite set of positive integers.

Group Theory · Mathematics 2014-02-26 A. Yu. Olshanskii

In this paper we begin the systematic study of group equations with abelian predicates in the main classes of groups where solving equations is possible. We extend the line of work on word equations with length constraints, and more…

Group Theory · Mathematics 2022-05-02 Laura Ciobanu , Albert Garreta

We study systems of polynomial equations in infinite finitely generated commutative associative rings with an identity element. For each such ring $R$ we obtain an interpretation by systems of equations of a ring of integers $O$ of a finite…

Number Theory · Mathematics 2021-02-08 Albert Garreta , Alexei Miasnikov , Denis Ovchinnikov

We construct and study finitely presented groups with quadratic Dehn function (QD-groups) and present the following applications of the method developed in our recent papers. (1) The isomorphism problem is undecidable in the class of…

Group Theory · Mathematics 2020-12-21 A. Yu. Olshanskii , M. V. Sapir

In this paper we investigate computational properties of the Diophantine problem for spherical equations in some classes of finite groups. We classify the complexity of different variations of the problem, e.g., when $G$ is fixed and when…

Group Theory · Mathematics 2023-08-25 Caroline Mattes , Alexander Ushakov , Armin Weiß

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 study systems of polynomial equations in several classes of finitely generated rings and algebras. For each ring $R$ (or algebra) in one of these classes we obtain an interpretation by systems of equations of a ring of integers $O$ of a…

Rings and Algebras · Mathematics 2022-10-26 Albert Garreta , Alexei Miasnikov , Denis Ovchinnikov
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