A remark on spherical equations in free metabelian groups

2017 ◽  
Vol 0 (0) ◽  
Author(s):  
Evgeny I. Timoshenko
Keyword(s):  
Metabelian Groups ◽  
Diophantine Problem ◽  
Magnus Embedding

AbstractI. Lysenok and A. Ushakov proved that the Diophantine problem for spherical quadric equations in free metabelian groups is solvable. The present paper proves this result by using the Magnus embedding.

scholarly journals Metabelian groups: Full-rank presentations, randomness and Diophantine problems

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Albert Garreta ◽  
Leire Legarreta ◽  
Alexei Miasnikov ◽  
Denis Ovchinnikov
Keyword(s):  
Normal Subgroup ◽  
Full Rank ◽  
Direct Decomposition ◽  
Metabelian Groups ◽  
Abelian Normal Subgroup ◽  
Diophantine Problem ◽  
Diophantine Problems ◽  
Finitely Presented ◽  
Finite Presentations

AbstractWe study metabelian groups 𝐺 given by full rank finite presentations \langle A\mid R\rangle_{\mathcal{M}} in the variety ℳ of metabelian groups. We prove that 𝐺 is a product of a free metabelian subgroup of rank \max\{0,\lvert A\rvert-\lvert R\rvert\} and a virtually abelian normal subgroup, and that if \lvert R\rvert\leq\lvert A\rvert-2, then the Diophantine problem of 𝐺 is undecidable, while it is decidable if \lvert R\rvert\geq\lvert A\rvert. We further prove that if \lvert R\rvert\leq\lvert A\rvert-1, then, in any direct decomposition of 𝐺, all factors, except one, are virtually abelian. Since finite presentations have full rank asymptotically almost surely, metabelian groups finitely presented in the variety of metabelian groups satisfy all the aforementioned properties asymptotically almost surely.

scholarly journals The Diophantine problem in some metabelian groups

2020 ◽  
Vol 89 (325) ◽  
pp. 2507-2519
Author(s):  
Olga Kharlampovich ◽  
Laura López ◽  
Alexei Myasnikov
Keyword(s):  
Metabelian Groups ◽  
Diophantine Problem

Automorphisms of partially commutative metabelian groups

2020 ◽  
Vol 59 (2) ◽  
pp. 239-259
Author(s):  
E. I. Timoshenko
Keyword(s):  
Metabelian Groups

Infinitely presented permutation stable groups and invariant random subgroups of metabelian groups

2021 ◽  
pp. 1-36
Author(s):  
ARIE LEVIT ◽  
ALEXANDER LUBOTZKY
Keyword(s):  
Ergodic Theorem ◽  
Abelian Groups ◽  
Wreath Products ◽  
Finitely Generated ◽  
Metabelian Groups ◽  
Amenable Groups ◽  
Pointwise Ergodic Theorem ◽  
Lamplighter Group ◽  
Invariant Random Subgroups

Abstract We prove that all invariant random subgroups of the lamplighter group L are co-sofic. It follows that L is permutation stable, providing an example of an infinitely presented such group. Our proof applies more generally to all permutational wreath products of finitely generated abelian groups. We rely on the pointwise ergodic theorem for amenable groups.

scholarly journals Another Law for the 3-Metabelian Groups

1966 ◽  
Vol 6 (4) ◽  
pp. 512-512
Author(s):  
I. D. Macdonald
Keyword(s):  
Mathematical Society ◽  
Metabelian Groups ◽  
Commutator Identity ◽  
Australian Mathematical Society ◽  
Correct Form ◽  
Image Position

Journal of the Australian Mathematical Society 4 (1964), 452–453The second paragraph should be deleted. The alleged commutator identity (3) is false and is certainly not due to Philip Hall. The correct form isas Dr. N. D. Gupta of Canberra has pointed out to me. According to Professor B. H. Neumann, this identity appeared in his (Professor Neumann's) thesis.Nevertheless the theorem is valid and the proof given is correct.

Right and left engel elements in metabelian groups

1981 ◽  
Vol 9 (12) ◽  
pp. 1295-1306 ◽  
Author(s):  
Luise-Charlotte Kappe
Keyword(s):  
Metabelian Groups ◽  
Engel Elements

scholarly journals Homological finiteness conditions for a class of metabelian groups

2017 ◽  
Vol 50 (1) ◽  
pp. 17-25
Author(s):  
Peter H. Kropholler ◽  
Joseph P. Mullaney
Keyword(s):  
Finiteness Conditions ◽  
Metabelian Groups

PROJECTIVE METABELIAN GROUPS AND LIE ALGEBRAS

1978 ◽  
Vol 12 (2) ◽  
pp. 213-223 ◽  
Author(s):  
V A Artamonov
Keyword(s):  
Lie Algebras ◽  
Metabelian Groups
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