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For any finitely generated abelian group $Q$, we reduce the problem of classification of $Q$-graded simple Lie algebras over an algebraically closed field of "good" characteristic to the problem of classification of gradings on simple Lie…

Representation Theory · Mathematics 2016-11-29 Volodymyr Mazorchuk , Kaiming Zhao

In this note, we will prove that a finite dimensional Lie algebra $L$ of characteristic zero, admitting an abelian algebra of derivations $D\leq Der(L)$ with the property $$ L^n\subseteq \sum_{d\in D}d(L) $$ for some $n\geq 1$, is…

Representation Theory · Mathematics 2010-11-09 Mohammad Shahryari

The goal of this paper is to describe the structure of finite-dimensional semi-simple Leibniz algebras in characteristic zero. Our main tool in this endeavor are hemi-semidirect products. One of the major results of this paper is a…

Rings and Algebras · Mathematics 2024-01-17 Jörg Feldvoss

The concept of breadth has been used in the classification of p-groups and nilpotent Lie algebras. In this paper, we investigate this notion for finite-dimensional solvable Lie algebras. Our main focus is to characterize solvable Lie…

Rings and Algebras · Mathematics 2026-03-02 Borworn Khuhirun , Korkeat Korkeathikhun , Songpon Sriwongsa , Keng Wiboonton

An algebra $L$ over a field $\Bbb F$, in which product is denoted by $[\,,\,]$, is said to be \textit{ Lie type algebra} if for all elements $a,b,c\in L$ there exist $\alpha, \beta\in \Bbb F$ such that $\alpha\neq 0$ and $[[a,b],c]=\alpha…

Rings and Algebras · Mathematics 2014-11-04 N. Yu. Makarenko

Motivated by the theory of unitary representations of finite dimensional Lie supergroups, we describe those Lie superalgebras which have a faithful finite dimensional unitary representation. We call these Lie superalgebras unitary. This is…

Quantum Algebra · Mathematics 2015-02-24 Saeid Azam , Karl-Hermann Neeb

We classify all the pairs of a commutative associative algebra with an identity element and its finite-dimensional commutative locally-finite derivation subalgebra such that the commutative associative algebra is derivation-simple with…

Quantum Algebra · Mathematics 2007-05-23 Yucai Su , Xiaoping Xu , Hechun Zhang

Hom-Lie superalgebras, which can be considered as a deformation of Lie superalgebras, are $\mathbb{Z}_2$-graded generalization of Hom-Lie algebras. In this paper, we prove that there is only the trivial Hom-Lie superalgebra structure over a…

Quantum Algebra · Mathematics 2012-03-06 Bintao Cao , Li Luo

The Recognition Theorem for graded Lie algebras is an essential ingredient in the classification of finite-dimensional simple Lie algebras over an algebraically closed field of characteristic p > 3. The main goal of this monograph is to…

Rings and Algebras · Mathematics 2007-05-23 Georgia Benkart , Thomas Gregory , Alexander Premet

It is well-known that every derivation of a semisimple Lie algebra $L$ over an algebraically closed field $F$ with characteristic zero is inner. The aim of this paper is to show what happens if the characteristic of $F$ is prime with $L$ an…

Rings and Algebras · Mathematics 2017-12-19 Pablo Alberca-Bjerregaard , Dolores Martín-Barquero , Cándido Martín-González

This paper considers the multiplicative Hom-Lie superalgebra structures on infinite dimensional simple Lie superalgebras of vector fields with characteristic zero. The main result is that there is only the multiplicative Hom-Lie…

Rings and Algebras · Mathematics 2018-07-25 Jixia Yuan , Liping Sun , Wende Liu

All results concern characteristic 2. Two procedures that to every simple Lie algebra assign simple Lie superalgebras, most of the latter new, are offered. We prove that every simple finite-dimensional Lie superalgebra is obtained as the…

Representation Theory · Mathematics 2024-09-16 Sofiane Bouarroudj , Alexei Lebedev , Dimitry Leites , Irina Shchepochkina

For a natural number $m$, a Lie algebra $L$ over a field $k$ is said to be of breadth type $(0, m)$ if the co-dimension of the centralizer of every non-central element is of dimension $m$. In this article, we classify finite dimensional…

Rings and Algebras · Mathematics 2024-04-04 Rijubrata Kundu , Tushar Kanta Naik , Anupam Singh

We continue the algebraic study of almost inner derivations of Lie algebras over a field of characteristic zero and determine these derivations for free nilpotent Lie algebras, for almost abelian Lie algebras, for Lie algebras whose…

Rings and Algebras · Mathematics 2019-05-21 Dietrich Burde , Karel Dekimpe , Bert Verbeke

The study of global deformations of Lie algebras is related to the problem of classification of simple Lie algebras over fields of small characteristic. The classification of finite-dimensional simple Lie algebras is complete over…

Rings and Algebras · Mathematics 2020-12-29 Natalya Chebochko

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

It is shown that if the universal enveloping algebra of a simple $\mathbb Z^n$-graded Lie algebra is Noetherian, then the Lie algebra is finite-dimensional.

Rings and Algebras · Mathematics 2024-12-19 Nicolás Andruskiewitsch , Olivier Mathieu

In this paper, we classify all capable nilpotent Lie algebras with the derived subalgebra of dimension 2 over an arbitrary field. Moreover, the explicit structure of such Lie algebras of class 3 is given.

Rings and Algebras · Mathematics 2021-05-21 Peyman Niroomand , Farangis Johari , Mohsen Parvizi

This paper presents a survey of the results and ideas behind the classification of the fine gradings, up to equivalence, on the simple finite dimensional Lie algebras over an algebraically closed field of characteristic zero. It provides an…

Rings and Algebras · Mathematics 2017-11-27 Cristina Draper , Alberto Elduque

This paper is a contribution to the isomorphism problem for universal enveloping algebras of finite-dimensional Lie algebras. We focus on solvable Lie algebras of small dimensions over fields of arbitrary characteristic. We prove, over an…

Rings and Algebras · Mathematics 2020-02-04 José L. Vilca Rodríguez , Csaba Schneider , Hamid Usefi