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The present article is part of a research program the aim of which is to find all indecomposable solvable extensions of a given class of nilpotent Lie algebras. Specifically in this article we consider a nilpotent Lie algebra n that is…

Mathematical Physics · Physics 2012-03-14 Libor Snobl , Pavel Winternitz

This paper begins by introducing the concept of a quasi-hom-Lie algebra which is a natural generalization of hom-Lie algebras introduced in a previous paper by the authors. Quasi-hom-Lie algebras include also as special cases (color) Lie…

Rings and Algebras · Mathematics 2007-05-23 Daniel Larsson , Sergei Silvestrov

We introduce and investigate the solvable graph $\Gamma_\mathfrak{S}(L)$ of a finite-dimensional Lie algebra $L$ over a field $F$. The vertices are the elements outside the solvabilizer $\sol(L)$, and two vertices are adjacent whenever they…

Rings and Algebras · Mathematics 2025-11-12 David Towers , Ismael Gutierrez , Luis Fernandez

We study a twisted generalization of Novikov algebras, called Hom-Novikov algebras, in which the two defining identities are twisted by a linear map. It is shown that Hom-Novikov algebras can be obtained from Novikov algebras by twisting…

Rings and Algebras · Mathematics 2011-05-25 Donald Yau

A generalization of power associative algebra, called Hom-power associative algebra, is studied. The main result says that a multiplicative Hom-algebra is Hom-power associative if and only if it satisfies two identities of degrees three and…

Rings and Algebras · Mathematics 2010-07-26 Donald Yau

We show that the higher-order Weyl algebras over a field of characteristic zero, which are formally rigid as associative algebras, can be formally deformed in a nontrivial way as hom-associative algebras. We also show that these…

Rings and Algebras · Mathematics 2026-05-18 Per Bäck

We present a local and constructive differential geometric description of finite-dimensional solvable and transitive Lie algebras of vector fields. We show that it implies a Lie's conjecture for such Lie algebras. Also infinite-dimensional…

Differential Geometry · Mathematics 2020-07-13 Katarzyna Grabowska , Janusz Grabowski

We study nilpotent Lie algebras endowed with a complex structure and a quadratic structure which is pseudo-Hermitian for the given complex structure. We propose several methods to construct such Lie algebras and describe a method of double…

Rings and Algebras · Mathematics 2023-01-18 Mustapha Bachaou , Ignacio Bajo , Mohamed Louzari

Let $(H,\alpha)$ be a monoidal Hom-Hopf algebra and $^{H}_{H}\mathcal{HYD}$ the Hom-Yetter-Drinfeld category over $(H,\alpha)$. Then in this paper, we first introduce the definition of braided Hom-Lie algebras and show that each monoidal…

Rings and Algebras · Mathematics 2019-02-19 Shengxiang Wang , Xiaohui Zhang , Shuangjian Guo

The purpose of this paper is to study deformation theory of Hom-associative algebra morphisms and Hom-Lie algebra morphisms. We introduce a suitable cohomology and discuss Infinitesimal deformations, equivalent deformations and…

Rings and Algebras · Mathematics 2017-10-23 Anja Arfa , Nizar Ben Fraj , Abdenacer Makhlouf

In this paper, first we study dual representations and tensor representations of Hom-pre-Lie algebras. Then we develop the cohomology theory of Hom-pre-Lie algebras in term of the cohomology theory of Hom-Lie algebras. As applications, we…

Rings and Algebras · Mathematics 2021-03-16 Shanshan Liu , Lina Song , Rong Tang

We study and classify the 3-dimensional Hom-Lie algebras over $\mathbb{C}$. We provide first a complete set of representatives for the isomorphism classes of skew-symmetric bilinear products defined on a 3-dimensional complex vector space…

Rings and Algebras · Mathematics 2020-03-26 R. García-Delgado , G. Salgado , O. A. Sánchez-Valenzuela

In this paper, we introduce the notion of n-Hom-pre-Lie superalgebras. We investigate the representation theory of n-Hom-pre-Lie superalgebras and we give some related results and structures based on Rota-Baxter operators, O-operators and…

Rings and Algebras · Mathematics 2022-09-02 Othmen Ncib , Sihem Sendi

The aim of this paper is to study the cohomology of Hom-Leibniz superalgebras. We construct the $q$-deformed Heisenberg-Virasoro superalgebra of Hom-type and provide as application the computations of the derivations and second cohomology…

Representation Theory · Mathematics 2014-06-17 El Kadri Abdaoui , Sami Mabrouk , Abdenacer Makhlouf

The second de Rham cohomology groups of nilpotent orbits in non-compact real forms of classical complex simple Lie algebras are explicitly computed. Furthermore, the first de Rham cohomology groups of nilpotent orbits in non-compact…

Group Theory · Mathematics 2022-03-29 Indranil Biswas , Pralay Chatterjee , Chandan Maity

We construct representation theory of Lie algebras with filtrations. In this framework a classification of irreducible representations is obtained and spectra of some reducible representations are found.

Representation Theory · Mathematics 2012-03-01 A. N. Panov

Hom-Lie superalgebras can be considered as the deformation of Lie superalgebras; which are $\mathbb{Z}_2$-graded generalization of Hom-Lie algebras. The motivation of this paper is to introduce the concept of isoclinism and factor set in…

Rings and Algebras · Mathematics 2023-06-21 N. Nandi , R. N. Padhan , K. C. Pati

Hom-alternative and Hom-Jordan algebras are shown to give rise to Hom-Nambu algebras of arities 2^{k+1} + 1. The class of n-ary Hom-Maltsev algebras is studied. Multiplicative n-ary Hom-Nambu-Lie algebras are shown to be n-ary Hom-Maltsev…

Rings and Algebras · Mathematics 2015-03-17 Donald Yau

We study hom-associative structures on general possibly non-associative algebras focusing on one-sided and two-sided unital algebras. New characterizations and aspects of these structures, along with some important subclasses, are explored…

Rings and Algebras · Mathematics 2026-03-27 Germán García Butenegro , Abdennour Kitouni , Sergei Silvestrov

In this paper we introduce the notion of Hom-pre-Lie bialgebra in the general framework of the cohomology theory for Hom-Lie algebras. We show that Hom-pre-Lie bialgebras, standard Manin triples for Hom-pre-Lie algebras and certain matched…

Rings and Algebras · Mathematics 2020-01-01 Shanshan Liu , Abdenacer Makhlouf , Lina Song