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The concept of breadth has been used in the classification of p-groups and nilpotent Lie algebras. In this paper, we investigate this notion for finite-dimensional solvable Lie algebras. Our main focus is to characterize solvable Lie…

Rings and Algebras · Mathematics 2026-03-02 Borworn Khuhirun , Korkeat Korkeathikhun , Songpon Sriwongsa , Keng Wiboonton

We consider the natural Lie algebra structure on the (associative) group algebra of a finite group $G$, and show that the Lie subalgebras associated to natural involutive antiautomorphisms of this group algebra are reductive ones. We give a…

Representation Theory · Mathematics 2008-09-02 Ivan Marin

In this paper we study finite semiprimitive permutation groups, that is, groups in which each normal subgroup is transitive or semiregular. We give bounds on the order, base size, minimal degree, fixity, and chief length of an arbitrary…

Group Theory · Mathematics 2018-06-05 Luke Morgan , Cheryl E. Praeger , Kyle Rosa

We establish bounds on a finite separable extension of function fields in terms of the relative class number, thus reducing the problem of classifying extensions with a fixed relative class number to a finite computation. We also solve the…

We show that the free group of rank 2 is a limit of 2-markings of Thompson's group F in the space of all 2-marked groups. More specifically, we find a sequence of generating pairs for F so that as one goes out the sequence, the length of…

Group Theory · Mathematics 2013-09-04 Matthew G. Brin

We describe the structure of the Lie groups endowed with a left-invariant symplectic form, called symplectic Lie groups, in terms of semi-direct products of Lie groups, symplectic reduction and principal bundles with affine fiber. This…

Differential Geometry · Mathematics 2013-10-08 Alberto Medina

We give two examples of a finitely generated subgroup of a free group and a subset, closed in the profinite topology of a free group, such that their product is not closed in the profinite topology of a free group.

Group Theory · Mathematics 2017-09-20 Rita Gitik , Eliyahu Rips

Limit theorems of strong law of large numbers and central limit theorem types are obtained for the compositions of independent identically distributed random unitary channels.

Probability · Mathematics 2026-01-06 S. V. Dzhenzher , V. Zh. Sakbaev

Surface groups are determined among limit groups by their profinite completions. As a corollary, the set of surface words in a free group is closed in the profinite topology.

Group Theory · Mathematics 2020-10-16 Henry Wilton

Every finite group $G$ has a normal series each of whose factors is either a solvable group or a direct product of nonabelian simple groups. The minimum number of nonsolvable factors attained on all possible such series is called the…

Group Theory · Mathematics 2018-05-16 Francesco Fumagalli , Felix Leinen , Orazio Puglisi

In this paper, we discuss asymptotic behavior of the capacity of the range of symmetric simple random walks on finitely generated groups. We show the corresponding strong law of large numbers and central limit theorem.

Probability · Mathematics 2021-11-19 Rudi Mrazović , Nikola Sandrić , Stjepan Šebek

It is a consequence of the classical Jordan bound for finite subgroups of linear groups that in each dimension n there are only finitely many finite simple groups which admit a faithful, linear action on the n-sphere. In the present paper…

Geometric Topology · Mathematics 2011-12-14 Alessandra Guazzi , Bruno Zimmermann

We analyze loop-induced group-like symmetries in theories where fields are labeled by basis elements of a fusion algebra constructed from the conjugacy classes of finite groups. Although the fusion rules for conjugacy classes are in general…

High Energy Physics - Theory · Physics 2026-03-17 Jun Dong , Tatsuo Kobayashi , Shuhei Miyamoto , Ryusei Nishida , Hajime Otsuka

We introduce a finite version of free probability for rectangular matrices that amounts to operations on singular values of polynomials. We show that we can replicate the transforms from free probability, and that asymptotically there is…

Probability · Mathematics 2023-10-25 Aurelien Gribinski

A systematic study is made, for an arbitrary finite relational language with at least one symbol of arity at least 2, of classes of nonrigid finite structures. The well known results that almost all finite structures are rigid and that the…

Logic · Mathematics 2016-01-28 Ove Ahlman , Vera Koponen

We introduce the notion of the depth of a finite group $G$, defined as the minimal length of an unrefinable chain of subgroups from $G$ to the trivial subgroup. In this paper we investigate the depth of (non-abelian) finite simple groups.…

Group Theory · Mathematics 2017-11-15 Timothy C. Burness , Martin W. Liebeck , Aner Shalev

Let $G$ be a finite group. We let $\f{m}(G)$ and $\sig(G)$ denote the number of maximal subgroups of $G$ and the least positive integer $n$ such that $G$ is written as the union of $n$ proper subgroups, respectively. In this paper we…

Group Theory · Mathematics 2007-05-23 Alireza Jamali , Hamid Mousavi

An application of Levy's continuity theorem and Hankel transform allow us to establish a law limit theorem for the sequence $V_n=f(U)\sin(n U)$, where $U$ is uniformly distributed in $(0,1)$ and $f$ a given function. Further, we investigate…

Probability · Mathematics 2024-06-24 Mostafa Maslouhi

We construct novel examples of finitely generated groups that exhibit seemingly-contradicting probabilistic behaviors with respect to Burnside laws. We construct a finitely generated group that satisfies a Burnside law, namely a law of the…

Group Theory · Mathematics 2026-04-30 Gil Goffer , Be'eri Greenfeld , Alexander Yu. Olshanskii

In this report we summarize this work, all finite simple groups $G$ can determined uniformly using their orders $|G|$ and the set $\pi_e(G)$ of their element orders.

Group Theory · Mathematics 2013-03-19 Wujie Shi