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This paper deals with $n$-dimensional algebras, over any field, which have only trivial derivation (automorphism) and simple algebras. It is shown that the corresponding sets of algebras are not empty and, in algebraically closed field…

Rings and Algebras · Mathematics 2025-03-12 U. Bekbaev

We introduce the notion of almost finite dimensionality of algebras and study its connection with the classical finiteness conditions.

Rings and Algebras · Mathematics 2007-05-23 Gábor Elek

In this paper we consider some classical varieties of linear algebras over the field which has characteristic 0. For every considered variety we take a category of the finite generated free algebras of this variety. And for every this…

Rings and Algebras · Mathematics 2012-10-25 A. Tsurkov

We consider a class of finite-dimensional algebras, the so-called "Staircase algebras" parametrized by Young diagrams. We develop a complete classification of representation types of these algebras and look into finite, tame (concealed) and…

Representation Theory · Mathematics 2016-09-19 Magdalena Boos

Classification, up to isomorphism, of algebras from a non-empty subset of the variety of $n$- dimensional algebras is presented. It is shown that these algebras have only trivial automorphism and if the basic field is algebraically closed…

Rings and Algebras · Mathematics 2024-09-11 Ural Bekbaev

This paper is primarily concerned with studying finite-dimensional anti-commutative nonassociative algebras in which every centralizer is an ideal. These are shown to be anti-associative and are classified over a general field $F$; in…

Rings and Algebras · Mathematics 2020-04-28 Ripan Saha , David A. Towers

In this paper, we describe the automorphisms of solvable Leibniz algebras with null-filiform nilradical. Moreover we describe the automorphisms of solvable Leibniz algebras with naturally graded non-Lie filiform nilradicals, whose the…

Rings and Algebras · Mathematics 2021-05-19 I. A. Karimjanov , S. M. Umrzaqov

A non-nilpotent variety of algebras is almost nilpotent if any proper subvariety is nilpotent. Let the base field be of characteristic zero. It has been shown that for associative or Lie algebras only one such variety exists. Here we…

Rings and Algebras · Mathematics 2017-01-24 S. Mishchenko , A. Valenti

There exists two types of nonassociative algebras whose associator satisfies a symmetric relation associated with a 1-dimensional invariant vector space with respect to the natural action of the symmetric group on three elements. The first…

Rings and Algebras · Mathematics 2009-10-06 Elisabeth Remm , Michel Goze

Metabelian algebras are introduced and it is shown that an algebra $A$ is metabelian if and only if $A$ is a nilpotent algebra having the index of nilpotency at most $3$, i.e. $x y z t = 0$, for all $x$, $y$, $z$, $t \in A$. We prove that…

Rings and Algebras · Mathematics 2015-07-10 G. Militaru

It is shown that any finite-dimensional homomorphic image of an inverse limit of nilpotent not-necessarily-associative algebras over a field is nilpotent. More generally, this is true of algebras over a general commutative ring k, with…

Rings and Algebras · Mathematics 2021-10-15 George M. Bergman

We study the algebras of derivations of nilpotent Leibniz algebras of low dimensions.

Rings and Algebras · Mathematics 2023-10-03 L. A. Kurdachenko , M. M. Semko , I. Ya. Subbotin

The paper is devoted to the study of finite dimensional complex evolution algebras. The class of evolution algebras isomorphic to evolution algebras with Jordan form matrices is described. For finite dimensional complex evolution algebras…

Commutative Algebra · Mathematics 2018-05-01 L. M. Camacho , J. R. Gómez , B. A. Omirov , R. M. Turdibaev

For every $n \in \mathbb{N}$, we construct a variety of Heyting algebras, whose $n$-generated free algebra is finite but whose $(n+1)$-generated free algebra is infinite.

Logic · Mathematics 2023-06-29 M. Martins , T. Moraschini

This paper is devoted to the study of graded associative algebras that satisfy a graded polynomial identity of degree $2$. % Let $\mathsf{G}$ be a finite abelian group, $\mathbb{F}$ a field of characteristic zero and $\mathfrak{A}$ a…

Rings and Algebras · Mathematics 2025-07-01 Antonio de França

In this paper we answer two questions from [16], by showing that, over any algebraically closed field, $K$, there is a finitely generated, infinitely dimensional algebra $A$ such that algebras $A\otimes_{K}A$ and $A\otimes_{K} A^{op}$ are…

Rings and Algebras · Mathematics 2014-03-12 Agata Smoktunowicz

The index of a Lie algebra is an important invariant which arises in several areas, e.g. in the study of coadjoint orbits for a Lie group, in invariant theory and in representation theory. We study the index for several classes of nilpotent…

Representation Theory · Mathematics 2025-05-14 Dietrich Burde , Karel Dekimpe

We define the notion of dextral symmetric algebras (not necessarily associative), motivated by the idea of symmetric rings. We derive a complete classification of dextral symmetric algebras of Leavitt path algebras, and right Leibniz…

Rings and Algebras · Mathematics 2024-06-12 Dimpy M. Dutta , Shanborlang Bynnud

We define nodal finite dimensional algebras and describe their structure over an algebraically closed field. For a special class of such algebras (type A) we find a criterion of tameness.

Representation Theory · Mathematics 2015-01-27 Yuriy A. Drozd , Vasyl V. Zembyk

We give a full classification, up to equivalence, of finite-dimensional graded division algebras over the field of real numbers. The grading group is any abelian group.

Rings and Algebras · Mathematics 2018-03-06 Yuri Bahturin , Mikhail Zaicev