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In this paper, we discuss a group-theoretical generalization of the well-known Gauss formula involving the functionthat counts the number of automorphisms of a finite group. This gives several characterizations of finite cyclic groups.

Group Theory · Mathematics 2022-12-20 Georgiana Fasolă , Marius Tărnăuceanu

In this work, we introduce the notion of a partial action of a group on a strict monoidal category. We propose, in the context of Monoidal categories, new constructions analogous to those existing for partial group actions over an algebra…

Category Theory · Mathematics 2024-12-18 Eliezer Batista , Felipe Lopes Castro , Mykola Khrypchenko

In a stable theory, a stationary type $q \in S(A)$ internal to a family of partial types $\mathcal{P}$ over $A$ gives rise to a type-definable group, called its binding group. This group is isomorphic to the group…

Logic · Mathematics 2019-06-27 Léo Jimenez

We classify the subsets of a group by their sizes, formalize the basic methods of partitions and apply them to partition a group to subsets of prescribed sizes.

Group Theory · Mathematics 2014-09-08 Igor Protasov , Sergii Slobodianiuk

'A semigroup is completely regular if and only if it is a union of groups'- an analogue of this structure theorem of completely regular semigroup has been obtained in the setting of seminearrings in [[16], Mukherjee (Pal) et al., Semigroup…

Rings and Algebras · Mathematics 2025-07-10 Rajlaxmi Mukherjee , Tuhin Manna , Kamalika Chakraborty , Sujit Kumar Sardar

The aim of this paper is to generalise the notion of p-stability to fusion systems. We study the question how Qd(p) is involved in finite simple groups. We show that with a single exception a simple group involving Qd(p) has a subgroup…

Group Theory · Mathematics 2017-01-10 László Héthelyi , Magdolna Szőke , Alexandre Zalesski

The partial group algebra of a group G over a field K, denoted by K_{par}(G), is the algebra whose representations correspond to the partial representations of G over K-vector spaces. In this paper we study the structure of the partial…

Group Theory · Mathematics 2007-05-23 M. Dokuchaev , R. Exel , P. Piccione

We initiate the study of analogues of symmetric spaces for the family of finite dihedral groups. In particular, we investigate the structure of the automorphism group, characterize the involutions of the automorphism group, and determine…

In this article, we introduce a new object, a virtual quadratic space, and its group of isometries. They are presented as natural generalizations of quadratic spaces and orthogonal groups. It is then shown that by replacing quadratic spaces…

Rings and Algebras · Mathematics 2017-01-25 Mate L. Juhasz

Partial connections are (singular) differential systems generalizing classical connections on principal bundles, yielding analogous decompositions for manifolds with nonfree group actions. Connection forms are interpreted as maps…

Differential Geometry · Mathematics 2007-05-23 Debra Lewis , Nilima Nigam , Peter Olver

As a common non-trivial generalization of the concept of a proper generalized Bassian group, we introduce the notion of a semi-generalized Bassian group and initiate its comprehensive investigation. Precisely, we give a satisfactory…

Group Theory · Mathematics 2023-08-29 Andrey R. Chekhlov , Peter V. Danchev , Patrick W. Keef

This is a survey, intended both for group theorists and model theorists, concerning the structure of pseudofinite groups, that is, infinite models of the first order theory of finite groups. The focus is on concepts from stability theory…

Logic · Mathematics 2016-07-25 Dugald Macpherson

It is the goal of this article to extend the notion of quantization from the standard interpretation focused on non-commuting observables defined starting from classical analogues, to the topological equivalents defined in terms of…

General Physics · Physics 2014-11-18 Andrei T. Patrascu

We prove some nice properties of anti-homomorphisms, some of which are analogic to that of homomorphisms. Meanwhile, we develop a new kind of composition called $*$-composition such that the $*$-composition of two anti-homomorphisms is…

Category Theory · Mathematics 2023-03-16 Tianwei Liang

This paper studies when a pair of elements in F are the images of the standard generators of F under a self monomorphism.

Group Theory · Mathematics 2009-12-04 Bronlyn Wassink

We will explore the nature of when certain finite groups have an equal covering, and when finite groups do not. Not to be confused with the concept of a cover group, a covering of a group is a collection of proper subgroups whose…

Group Theory · Mathematics 2022-07-01 Andrew Velasquez-Berroteran

The framework of generalized probabilistic theories is a powerful tool for studying the foundations of quantum physics. It provides the basis for a variety of recent findings that significantly improve our understanding of the rich physical…

Quantum Physics · Physics 2014-08-14 Peter Janotta , Haye Hinrichsen

This paper gives an explicit structure theorem for the symmetric group acting on the symmetric algebra of its natural module. Let $G$ be the symmetric group on $x_1,..., x_n$ and let $d_i$ be the $i^{\text{th}}$ elementary symmetric…

Rings and Algebras · Mathematics 2013-01-08 Robert Mckemey

We extend Borel's theorem on the dominance of word maps from semisimple algebraic groups to some perfect groups. In another direction, we generalize Borel's theorem to some words with constants. We also consider the surjectivity problem for…

Group Theory · Mathematics 2018-04-26 Nikolai Gordeev , Boris Kunyavskii , Eugene Plotkin

We investigate the group of large diffeomorphisms fixing a frame at a point for general closed 3-manifolds. We derive some general structural properties of these groups which relate to the picture of the manifold as being composed of…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Domenico Giulini
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