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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

Uniform Lie algebras are combinatorially defined two-step nilpotent Lie algebras which can be used to define Einstein solvmanifolds. These Einstein spaces often have nontrivial isotropy groups. We derive basic properties of uniform Lie…

Differential Geometry · Mathematics 2016-03-03 Tracy L. Payne , Matthew Schroeder

We give a complete classification (up to isomorphism) of Lie conformal algebras which are free of rank two as $\C[\partial]$-modules, and determine their automorphism groups.

Representation Theory · Mathematics 2019-07-12 Rekha Biswal , Abdelkarim Chakhar , Xiao He

We prove the following. Let $R$ be a Noetherian ring, $B$ a finitely generated $R$-algebra, and $A$ a pure $R$-subalgebra of $B$. Then $A$ is finitely generated over $R$.

Commutative Algebra · Mathematics 2010-11-30 Mitsuyasu Hashimoto

We construct all finite irreducible modules over Lie conformal superalgebras of type W and S.

Mathematical Physics · Physics 2010-05-12 Carina Boyallian , Victor G. Kac , Jose I. Liberati , Alexei Rudakov

We illustrate some simple ideas that can be used for obtaining a classification of small-dimensional solvable Lie algebras.Using these we obtain the classification of 3 and 4 dimensional solvable Lie algebras (over fields of any…

Rings and Algebras · Mathematics 2007-05-23 W. A. de Graaf

We introduce the notion of a conformal pseudo-subriemannian fundamental graded Lie algebra of semisimple type. Moreover we give a classification of conformal pseudo-subriemannian fundamental graded Lie algebras of semisimple type and their…

Differential Geometry · Mathematics 2018-04-27 Tomoaki Yatsui

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 a previous paper by the authors, we obtain the first example of a finitely freely generated simple $\mathbb Z$-graded Lie conformal algebra of linear growth that cannot be embedded into any general Lie conformal algebra. In this paper,…

Representation Theory · Mathematics 2021-01-26 Yucai Su , Xiaoqing Yue

We present a formalization, in the theorem prover Lean, of the classification of solvable Lie algebras of dimension at most three over arbitrary fields. Lie algebras are algebraic objects which encode infinitesimal symmetries, and as such…

Logic in Computer Science · Computer Science 2025-05-27 Viviana del Barco , Gustavo Infanti , Exequiel Rivas , Paul Schwahn

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

Consider a compact connected Lie group $G$ and the corresponding Lie algebra $\cal L$. Let $\{X_1,...,X_m\}$ be a set of generators for the Lie algebra $\cal L$. We prove that $G$ is uniformly finitely generated by $\{X_1,...,X_m\}$. This…

Quantum Physics · Physics 2007-05-23 D. D'Alessandro

It is well known that a finite-dimensional Lie algebra over a field of characteristic zero is simple exactly when its derivation algebra is simple. In this paper we characterize those Lie algebras of arbitrary dimension over any field that…

Rings and Algebras · Mathematics 2025-01-28 Jörg Feldvoss , Salvatore Siciliano

Classes of algebraic structures that are defined by equational laws are called varieties or equational classes. A variety is finitely generated if it is defined by the laws that hold in some fixed finite algebra. We show that every…

Rings and Algebras · Mathematics 2014-04-01 Erhard Aichinger , Peter Mayr

We give a simplified complete proof for the classification of the selfinjective representation-finite algebras of finite dimension over an algebraically closed field. We explain the relations between the two different approaches and also to…

Representation Theory · Mathematics 2023-05-30 Klaus Bongartz

Let $A$ be an associative algebra over a field of characteristic $\neq 2$ that is generated by a finite collection of nilpotent elements. We prove that all Lie derived powers of $A$ are finitely generated Lie algebras.

Rings and Algebras · Mathematics 2017-12-21 Adel Alahmadi , Hamed Alsulami

We give a complete description of Lie algebras graded by an infinite irreducible locally finite root system.

Quantum Algebra · Mathematics 2011-06-28 Malihe Yousofzadeh

In this paper, we study a class of infinite simple Lie conformal algebras associated to a class of generalized Block type Lie algebras. The central extensions, conformal derivations and free intermediate series modules of this class of Lie…

Representation Theory · Mathematics 2019-07-01 Yanyong Hong , Yang Pan , Haibo Chen

Let L be a restricted Lie algebra over a field of positive characteristic. We survey the known results about the Lie structure of the restricted enveloping algebra u(L) of L. Related results about the structure of the group of units and the…

Rings and Algebras · Mathematics 2015-11-02 Salvatore Siciliano , Hamid Usefi

We classify all simple bounded highest weight modules of a basic classical Lie superalgebra $\mathfrak g$. In particular, our classification leads to the classification of the simple weight modules with finite weight multiplicities over all…

Representation Theory · Mathematics 2019-01-01 Maria Gorelik , Dimitar Grantcharov