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We show that for any finitely generated group of matrices that is not virtually solvable, there is an integer m such that, given an arbitrary finite generating set for the group, one may find two elements a and b that are both products of…

Group Theory · Mathematics 2007-05-23 E. Breuillard , T. Gelander

We prove that it is NP-complete to decide whether a given string can be factored into palindromes that are each unique in the factorization.

Formal Languages and Automata Theory · Computer Science 2020-12-15 Hideo Bannai , Travis Gagie , Shunsuke Inenaga , Juha Karkkainen , Dominik Kempa , Marcin Piatkowski , Simon J. Puglisi , Shiho Sugimoto

Every numerical semigroup can be expressed as an intersection of irreducible numerical semigroups. We show that the unions of sets of lengths of factorizations of numerical semigroups into irreducible numerical semigroups are all equal to…

Commutative Algebra · Mathematics 2024-10-18 Pedro A. Garcia-Sanchez

We prove the decidability of the elementary theory of a free group.

General Mathematics · Mathematics 2017-09-15 G. S. Makanin

We give a description of elementary subgroups (in the sense of first-order logic) of finitely generated virtually free groups. In particular, we recover the fact that elementary subgroups of finitely generated free groups are free factors.…

Group Theory · Mathematics 2019-12-16 Simon André

We prove a refinement of the results of Gross and Zagier on prime factorizations of singular moduli.

Number Theory · Mathematics 2012-03-01 Benjamin Howard , Tonghai Yang

We prove that a plethysm product of two Schur functions can be factorised uniquely and classify homogeneous and indecomposable plethysm products.

Representation Theory · Mathematics 2019-04-02 Chris Bowman , Rowena Paget

Using the action of the Galois group of a normal extension of number fields, we generalize and symmetrize various fundamental statements in algebra and algebraic number theory concerning splitting types of prime ideals, factorization types…

Number Theory · Mathematics 2018-07-09 Fusun Akman

We construct examples of localizations in the category of groups which take the Mathieu group $M_{11}$ to groups of arbitrarily large cardinality which are ``abelian up to finitely many generators''. The paper is part of a broader study on…

Group Theory · Mathematics 2008-10-10 Adam J. Przezdziecki

We study arithmetic properties of factorizations of elements into products of generators, in monoids given with explicit presentations. After relating and comparing this perspective to the more usual approach of factoring into products of…

Group Theory · Mathematics 2026-03-10 Alfred Geroldinger , Zachary Mesyan

We prove that if $G$ is a finite simple group, then all irreducible complex representations of $G$ by be realized over the real numbers if and only if every element of $G$ may be written as a product of two involutions in $G$. This follows…

Representation Theory · Mathematics 2018-11-14 C. Ryan Vinroot

We verify the inductive McKay condition for simple groups of Lie type C, namely finite projective symplectic groups. This contributes to the program of a complete proof of the McKay conjecture for all finite groups via the reduction theorem…

Representation Theory · Mathematics 2016-12-13 Marc Cabanes , Britta Späth

Let $\mathbb F_q$ be a finite field and $n$ a positive integer. In this article, we prove that, under some conditions on $q$ and $n$, the polynomial $x^n-1$ can be split into irreducible binomials $x^t-a$ and an explicit factorization into…

Information Theory · Computer Science 2014-05-20 F. E. Brochero Martínez , C. R. Giraldo Vergara , L. Batista de Oliveira

A sharp bound is obtained for the number of ways to express the monomial $X^n$ as a product of linear factors over $\mathbb{Z}/p^{\alpha}\mathbb{Z}$. The proof relies on an induction-on-scale procedure which is used to estimate the number…

Number Theory · Mathematics 2017-11-16 Jonathan Hickman , James Wright

A group is $\textit{finitely axiomatizable}$ (FA) in a class $\mathcal{C}$ if it can be determined up to isomorphism within $\mathcal{C}$ by a sentence in the first-order language of group theory. We show that profinite groups of various…

Group Theory · Mathematics 2021-05-25 Andre Nies , Dan Segal , Katrin Tent

In a finite group, a subset is called a Lagrange subset if its size divides the group order, and a factor if it admits a complementary subset. We provide a new and comparatively direct proof of the classification of groups in which every…

Group Theory · Mathematics 2025-12-30 Mikhail Kabenyuk

This is a survey on factorization theory. We discuss finitely generated monoids (including affine monoids), primary monoids (including numerical monoids), power sets with set addition, Krull monoids and their various generalizations, and…

Commutative Algebra · Mathematics 2019-12-02 Alfred Geroldinger , Qinghai Zhong

This paper contains a complete proof of a fundamental theorem on the normalizers of unipotent subgroups in semisimple algebraic groups.

Algebraic Geometry · Mathematics 2007-05-23 B. Weisfeiler

In this paper the concept of $\mathbb{F}$-functorial of a finite group was introduced. These functorials have many properties of the Fitting subgroup of a soluble group and the generalized Fitting subgroup of a finite group. It was shown…

Group Theory · Mathematics 2021-03-25 Viachaslau I. Murashka , Alexander F. Vasil'ev

Based on the concepts of $\mathbb{R}$-factorizable topological groups and $\mathcal{M}$-factorizable topological groups, we introduce four classes of factorizabilities on topological groups, named $P\mathcal{M}$-factorizabilities,…

General Topology · Mathematics 2022-05-17 Meng Bao , Xiaoquan Xu