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We determine the universal central extension of the Lie algebra of hamiltonian vector fields, thereby classifying its central extensions. Furthermore, we classify the central extensions of the Lie algebra of symplectic vector fields, of the…

Symplectic Geometry · Mathematics 2016-12-21 Bas Janssens , Cornelia Vizman

We study identities of Lie superalgebras over a field of characteristic zero. We construct a series of examples of finite-dimensional solvable Lie superalgebras with a non-nilpotent commutator subalgebra for which PI-exponent of codimension…

Rings and Algebras · Mathematics 2024-08-19 M. V. Zaicev , D. D. Repovš

We prove a refinement of Ado's theorem for Lie algebras over an algebraically-closed field of characteristic zero. We first define what it means for a Lie algebra $L$ to be approximated with a nilpotent ideal, and we then use such an…

Rings and Algebras · Mathematics 2017-03-02 Wolfgang Alexander Moens

We classify real and complex infinite-dimensional narrow positively graded Lie algebras ${\mathfrak g}=\oplus_{i=1}^{{+}\infty}{\mathfrak g}_i$ with properties $$ [{\mathfrak g}_1, {\mathfrak g}_i]={\mathfrak g}_{i{+}1}, \; \dim{{\mathfrak…

Rings and Algebras · Mathematics 2017-12-12 Dmitry Millionshchikov

We determine all two-dimensional Lie subalgebras of the centreless Virasoro algebra and complete the characterization of all finite dimensional Lie subalgebras of the complex Virasoro algebra.

Rings and Algebras · Mathematics 2014-11-18 Zhihua Chang

We define and investigate nilpotent Lie algebras associated with quadratic forms. We also present their connections with Lie algebras and Ringel-Hall algebras associated with representation directed algebras.

Representation Theory · Mathematics 2013-06-27 Justyna Kosakowska

We delineate the image of multilinear Lie polynomial of degree $2$ evaluated on $L$ where $L$ is a finite-dimensional nilpotent Lie algebra over field $k$ with $\dim L' \leq 4$.

Rings and Algebras · Mathematics 2022-06-29 Niranjan , Shushma Rani

In this paper, we focus on derivations and centroids of four dimensional associative algebras. Using an existing classification result of low dimensional associative algebras, we describe the derivations and centroids of four dimensional…

Rings and Algebras · Mathematics 2017-02-21 A. O. Abdulkareem , M. A. Fiidow , I. S. Rakhimov

Premet has conjectured that the nilpotent variety of any finite-dimensional restricted Lie algebra is an irreducible variety. In this paper, we prove this conjecture in the case of Hamiltonian Lie algebra. and show that its nilpotent…

Representation Theory · Mathematics 2014-01-28 Junyan Wei

We study finite-dimensional nonassociative algebras. We prove the implicit function theorem for such algebras. This allows us to establish a correspondence between such algebras and quasigroups, in the spirit of classical correspondence…

Rings and Algebras · Mathematics 2022-08-23 Yuri Bahturin , Alexander Olshanskii

The connections between Euler's equations on central extensions of Lie algebras and Euler's equations on the original, extended algebras are described. A special infinite sequence of central extensions of nilpotent Lie algebras constructed…

Differential Geometry · Mathematics 2024-12-03 I. A. Taimanov

In this paper, we study positive as well as non-negative and non-trivial gradings on finite dimensional Lie algebras. We give a different proof that the existence of such a grading on a Lie algebra is invariant under taking field…

Rings and Algebras · Mathematics 2016-03-04 Jonas Deré

We study group-graded Lie algebras L with finite support X. We show that L is nilpotent of |X|-bounded class if X is arithmetically-free. Conversely: we show that Y supports the grading of a non-nilpotent Lie algebra if Y is not…

Rings and Algebras · Mathematics 2016-08-04 Wolfgang Alexander Moens

In this paper, the structure of all finite-dimensional nilpotent Lie algebras of class two with derived subalgebra of dimension two over an arbitrary field $ \mathbb{F} $ is determined. Furthermore, we give the structure of the Schur…

Rings and Algebras · Mathematics 2021-05-21 F. Johari , A. Shamsaki , P. Niroomand

Let E be an operator algebra on a Hilbert space with finite-dimensional generated C*-algebra. A classification is given of the locally finite algebras and the operator algebras obtained as limits of direct sums of matrix algebras over E…

Operator Algebras · Mathematics 2007-05-23 S. C. Power

W. A. Moens proved that a Lie algebra is nilpotent if and only if it admits an invertible Leibniz-derivation. In this paper we show that with the definition of Leibniz-derivation from W. A. Moens the similar result for non Lie Leibniz…

Rings and Algebras · Mathematics 2012-04-10 Alice Fialowski , A. Kh. Khudoyberdiyev , B. A. Omirov

In this paper we extend the Lie theory of integration in two different ways. First we consider a finite dimensional Lie algebra of vector fields and discuss the most general conditions under which the integral curves of one of the fields…

Mathematical Physics · Physics 2019-07-18 J. F. Cariñena , F. Falceto , J. Grabowski , M. F. Rañada

The aim of this work is to offer a family of invariants that allows us to classify finite potent endomorphisms on arbitrary vector spaces, generalizing the classification of endomorphisms on finite-dimensional vector spaces. As a particular…

Rings and Algebras · Mathematics 2020-07-07 Fernando Pablos Romo

We extend the classification of solvable Lie algebras with abelian nilradicals to classify solvable Leibniz algebras which are one dimensional extensions of an abelian nilradicals.

Rings and Algebras · Mathematics 2014-10-02 Lindsey Bosko-Dunbar , Matthew Burke , Jonathan D. Dunbar , J. T. Hird , Kristen Stagg Rovira

In this paper we study non-nilpotent non-Lie Leibniz $\mathbb{F}$-algebras with one-dimensional derived subalgebra, where $\mathbb{F}$ is a field with $\operatorname{char}(\mathbb{F}) \neq 2$. We prove that such an algebra is isomorphic to…

Rings and Algebras · Mathematics 2026-05-19 Alfonso Di Bartolo , Gianmarco La Rosa , Manuel Mancini
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