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In this paper, we present some basic properties concerning the quasi-derivation algebra $QDer(\mathcal{A})$ and the quasi-centroid algebra $QC(\mathcal{A})$ of associative algebra $\mathcal{A}$. Furthermore, using the result on…

Rings and Algebras · Mathematics 2023-06-27 M. A. Fiidow , Ahmed Zahari , Bouzid Mosbahi

We say that a category $\mathscr{D}$ is dimension zero over a field $F$ provided that every finitely generated representation of $\mathscr{D}$ over $F$ is finite length. We show that $\textrm{Rel}(R)$, a category that arises naturally from…

Representation Theory · Mathematics 2018-10-16 Andrew Gitlin

We obtain a complete classification of minimal simple unitary $W$-algebras.

Representation Theory · Mathematics 2024-08-05 Victor G. Kac , Pierluigi Möseneder Frajria , Paolo Papi

In this paper we present a complete classification (isomorphism classes with some isomorphism invariants) of complex associative algebras up to dimension five (including both cases: unitary and non-unitary). In some symbolic computations we…

Rings and Algebras · Mathematics 2009-10-07 I. S. Rakhimov , I. M. Rikhsiboev , W. Basri

Based on a class of associative algebras with zero-divisors which are called real-like algebras by us, we introduce a way of defining automatic differentiation and present different ways of doing automatic differentiation to compute the…

Numerical Analysis · Mathematics 2020-06-16 Keqin Liu

The Leibniz algebras appeared as a generalization of the Lie algebras. In this work we deal with the classification of nilpotent complex Leibniz algebras of low dimensions. Namely, the classification of nilpotent complex Leibniz algebras…

Rings and Algebras · Mathematics 2007-05-23 S. Albeverio , B. A. Omirov , I. S. Rakhimov

It is well-known that the space of derivations of $n$-dimensional evolution algebras with non-singular matrices is zero. On the other hand, the space of derivations of evolution algebras with matrices of rank $n-1$ has also been completely…

Rings and Algebras · Mathematics 2018-11-06 Paula Cadavid , Mary Luz Rodiño Montoya , Pablo M. Rodriguez

We classify the $4$-dimensional nilpotent bicommutative algebras over $\mathbb C$ from both algebraic and geometric approaches.

Rings and Algebras · Mathematics 2020-04-03 Ivan Kaygorodov , María Pilar Paez Guillán , Vasily Voronin

Using the algebraic classification of all $2$-dimensional algebras, we give the algebraic classification of all $2$-dimensional rigid, conservative and terminal algebras over an algebraically closed field of characteristic 0. We have the…

Rings and Algebras · Mathematics 2018-10-04 Antonio Jesús Calderón , Amir Fernández Ouaridi , Ivan Kaygorodov

We describe automorphisms and derivations of several important associative and Lie algebras of infinite matrices over a field.

Rings and Algebras · Mathematics 2021-08-12 Oksana Bezushchak

Twisted loop algebras of the second kind are infinite-dimensional Lie algebras that are constructed from a semisimple Lie algebra and an automorphism on it of order at most $2$. They are examples of equivariant map algebras. The…

Representation Theory · Mathematics 2025-06-04 Hideya Watanabe

We review the open problems in the theory of deformations of zero-dimensional objects, such as algebras, modules or tensors. We list both the well-known ones and some new ones that emerge from applications. In view of many advances in…

Algebraic Geometry · Mathematics 2023-07-19 Joachim Jelisiejew

The Jacobian algebras are introduced and their various properties are studied.

Rings and Algebras · Mathematics 2007-06-06 V. V. Bavula

We give a classification of 5- and 6-dimensional complex one-generated nilpotent Novikov algebras

Rings and Algebras · Mathematics 2020-04-09 Luisa M. Camacho , Iqboljon Karimjanov , Ivan Kaygorodov , Abror Khudoyberdiyev

The present paper is devoted to the description of finite-dimensional semisimple Leibniz algebras over complex numbers, their derivations and automorphisms.

Rings and Algebras · Mathematics 2017-08-29 Shavkat Ayupov , Karimbergen Kudaybergenov , Bakhrom Omirov , Kaiming Zhao

The concept of descent algebras over a field of characteristic zero is extended to define descent algebras over a field of prime characteristic. Some basic algebraic structure of the latter, including its radical and irreducible modules, is…

Combinatorics · Mathematics 2007-06-21 M. D. Atkinson , G. Pfeiffer , S. J. van Willigenburg

In the present paper we obtain the list of algebras, up to isomorphism, such that closure of any complex finite-dimensional algebra contains one of the algebra of the given list.

Rings and Algebras · Mathematics 2013-01-25 A. Kh. Khudoyberdiyev , B. A. Omirov

We give a classification of $5$- and $6$-dimensional complex one-generated nilpotent bicommutative algebras.

Rings and Algebras · Mathematics 2022-08-02 Ivan Kaygorodov , Pilar Páez-Guillán , Vasily Voronin

A double algebra is a linear space $V$ equipped with linear map $V\otimes V\to V\otimes V$. Additional conditions on this map lead to the notions of Lie and associative double algebras. We prove that simple finite-dimensional Lie double…

Quantum Algebra · Mathematics 2018-10-31 M. E. Goncharov , P. S. Kolesnikov

We consider the notion of dimension in four categories: the category of (unbounded) separable metric spaces and (metrically proper) Lipschitz maps, and the category of (unbounded) separable metric spaces and (metrically proper) uniform…

Metric Geometry · Mathematics 2008-02-27 N. Brodskiy , J. Dydak , J. Higes , A. Mitra