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Axial algebras are a recently introduced class of non-associative algebra motivated by applications to groups and vertex-operator algebras. We develop the structure theory of axial algebras focussing on two major topics: (1) radical and…

Rings and Algebras · Mathematics 2020-04-27 Sanhan Khasraw , Justin McInroy , Sergey Shpectorov

We classify all division algebras that are principal Albert isotopes of a cyclic Galois field extension of degree $n>2$ up to isomorphisms. We achieve a ``tight'' classification when the cyclic Galois field extension is cubic. The…

Rings and Algebras · Mathematics 2025-02-28 Susanne Pumpluen

We study diverse parametrized versions of the operad of associative algebra, where the parameter are taken in an associative semigroup $\Omega$ (generalization of matching or family associative algebras) or in its cartesian square…

Rings and Algebras · Mathematics 2021-12-09 Loïc Foissy

We discuss the homological algebra of representation theory of finite dimensional algebras and finite groups. We present various methods for the construction and the study of equivalences of derived categories: local group theory, geometry…

Representation Theory · Mathematics 2007-05-23 Raphael Rouquier

We introduce the notion of clone algebra, intended to found a one-sorted, purely algebraic theory of clones. Clone algebras are defined by true identities and thus form a variety in the sense of universal algebra. The most natural clone…

Logic · Mathematics 2021-01-19 Antonio Bucciarelli , Antonino Salibra

We consider several classes of complete intersection numerical semigroups, aris- ing from many different contexts like algebraic geometry, commutative algebra, coding theory and factorization theory. In particular, we determine all the…

Commutative Algebra · Mathematics 2014-04-08 Marco D'Anna , Vincenzo Micale , Alessio Sammartano

Closure operations such as tight and integral closure and test ideals have appeared frequently in the study of commutative algebra. This articles serves as a survey of the authors' prior results connecting closure operations, test ideals,…

Commutative Algebra · Mathematics 2026-03-26 Neil Epstein , Rebecca R. G. , Janet Vassilev

The theory of unified product and extending structures for alternative and pre-alternative algebras are developed. It is proved that the extending structures of these algebras can be classified by using some non-abelian cohomology and…

Rings and Algebras · Mathematics 2021-08-24 Tao Zhang , Shuxian Cui , Jing Si

We give a complete classification of the class of Lie algebras of simply connected real Lie groups whose nontrivial coadjoint orbits are of codimension 1. Such a Lie group belongs to a well-known class, called the class of MD-groups. The…

Rings and Algebras · Mathematics 2021-09-13 Hieu Ha Van , Vu Le Anh , Hoa Duong Quang

The paper is devoted to classification problem of finite dimensional complex none Lie filiform Leibniz algebras. Actually, the observations show there are two resources to get classification of filiform Leibniz algebras. The first of them…

Rings and Algebras · Mathematics 2007-05-23 U. D. Bekbaev , I. S. Rakhimov

From the viewpoint of semi-abelian homology, some recent results on homology of Leibniz n-algebras can be explained categorically. In parallel with these results, we develop an analogous theory for Lie n-algebras. We also consider the…

Algebraic Topology · Mathematics 2011-03-16 Jose Manuel Casas , Emzar Khmaladze , Manuel Ladra , Tim Van der Linden

In the framework of operator theory, we investigate a close Lie theoretic relationship between all operator ideals and certain classical groups of invertible operators that can be described as the solution sets of certain algebraic…

Operator Algebras · Mathematics 2013-03-21 Daniel Beltita , Sasmita Patnaik , Gary Weiss

This text, based on the author's Bachelor's thesis, introduces the theory of Algebraic Operads, a mathematical formalism that provides a unifying framework for modern algebra. We demonstrate how the fundamental theories of associative,…

Quantum Algebra · Mathematics 2025-11-11 Felicia Ferraioli

We introduce and develop a structure theory of a new class of noncommutative rings - Galois orders, that generalize classical orders in noncommutative rings. Galois orders realized as certain subrings of invariants in skew semigroup rings.…

Representation Theory · Mathematics 2008-09-16 Vyacheslav Futorny , Serge Ovsienko

The structure of Lie algebras, Lie superalgebras and Leibniz algebras graded by finite root systems has been studied by several researchers since 1992. In this paper, we study the structure of Leibniz superalgebras graded by finite root…

Representation Theory · Mathematics 2012-08-27 Naihong Hu , Dong Liu , and Linsheng Zhu

The purpose of this paper is twofold. Firstly, to emphasise that the class of Lie algebras with chain lattices of ideals are elementary blocks in the embedding or decomposition of Lie algebras with finite lattice of ideals. Secondly, to…

Rings and Algebras · Mathematics 2023-07-11 Pilar Benito , Jorge Roldán-López

The possibility of extending operations of topological and semitopological algebras to their Stone-\v{C}ech compactification and factorization of continuous functions through homomorphisms to metrizable algebras are investigated. Most…

General Topology · Mathematics 2024-06-11 Evgenii Reznichenko

We give infinite triangularization and strict triangularization results for algebras of operators on infinite dimensional vector spaces. We introduce a class of algebras we call Ore-solvable algebras: these are similar to iterated Ore…

Rings and Algebras · Mathematics 2020-07-27 Miodrag Iovanov , Jeremy Edison , Alexander Sistko

We establish some results about large restricted Lie algebras similar to those known in the Group Theory. As an application we use this group-theoretic approach to produce some examples of restricted as well as ordinary Lie algebras which…

Rings and Algebras · Mathematics 2007-05-23 Yuri Bahturin , Alexander Olshanskii

Alternating bilinear maps with few relations allow to define a combinatorial closure similarly as in [2]. For the $\aleph_0$-categorical case we show that this closure is part of the algebraic closure.

Rings and Algebras · Mathematics 2009-09-25 Andreas Baudisch