Results 1 to 10 of about 472 (192)

On the structure of some non-periodic groups whose subgroups of infinite special rank are transitively normal

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
A group $G$ has a finite special rank $r$ if every finitely generated subgroup of $G$ is generated by at most $r$ elements and there is a finitely generated subgroup of $G$ which has exactly $r$ generators.
T.V. Velychko
doaj   +1 more source

Diophantine problems in solvable groups [PDF]

open access: yesBulletin of Mathematical Sciences, 2020
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 “non-commutativity” conditions.
Albert Garreta   +2 more
doaj   +1 more source

Arithmetic matroids and Tutte polynomials [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
We introduce the notion of arithmetic matroid, whose main example is provided by a list of elements in a finitely generated abelian group. We study the representability of its dual, and, guided by the geometry of toric arrangements, we give a ...
Michele D'Adderio, Luca Moci
doaj   +1 more source

The Groups of Isometries of Metric Spaces over Vector Groups

open access: yesMathematics, 2022
In this paper, we consider the groups of isometries of metric spaces arising from finitely generated additive abelian groups. Let A be a finitely generated additive abelian group.
Sheng Bau, Yiming Lei
doaj   +1 more source

On the Structure of the Mislin Genus of a Pullback

open access: yesMathematics, 2023
The notion of genus for finitely generated nilpotent groups was introduced by Mislin. Two finitely generated nilpotent groups Q and R belong to the same genus set G(Q) if and only if the two groups are nonisomorphic, but for each prime p, their p ...
Thandile Tonisi   +2 more
doaj   +1 more source

Characterizations of modules definable in o-minimal structures

open access: yesAIMS Mathematics, 2023
Let $ \mathfrak M $ be an o-minimal expansion of a densely linearly ordered set and $ (S, +, \cdot, 0_S, 1_S) $ be a ring definable in $ \mathfrak M $.
Jaruwat Rodbanjong   +1 more
doaj   +1 more source

A bridge theorem for the entropy of semigroup actions

open access: yesTopological Algebra and its Applications, 2020
The topological entropy of a semigroup action on a totally disconnected locally compact abelian group coincides with the algebraic entropy of the dual action.
Bruno Anna Giordano
doaj   +1 more source

Abelian subgroup separability of some one-relator groups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
We prove that any group in the class of one-relator groups given by the presentation 〈a,b;[am,bn]=1〉, where m and n are integers greater than 1, is cyclic subgroup separable (or πc).
D. Tieudjo
doaj   +1 more source

When the intrinsic algebraic entropy is not really intrinsic

open access: yesTopological Algebra and its Applications, 2015
The intrinsic algebraic entropy ent(ɸ) of an endomorphism ɸ of an Abelian group G can be computed using fully inert subgroups of ɸ-invariant sections of G, instead of the whole family of ɸ-inert subgroups.
Goldsmith Brendan, Salce Luigi
doaj   +1 more source

ABELIAN $n$ -DIVISION FIELDS OF ELLIPTIC CURVES AND BRAUER GROUPS OF PRODUCT KUMMER & ABELIAN SURFACES

open access: yesForum of Mathematics, Sigma, 2017
Let $Y$ be a principal homogeneous space of an abelian surface, or a K3 surface, over a finitely generated extension of
ANTHONY VÁRILLY-ALVARADO, BIANCA VIRAY
doaj   +1 more source

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