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The propose of this paper is to extend generalized representations of 3-Lie algebras to Hom-type algebras. We introduce the concept of generalized representation of multiplicative 3-Hom-Lie algebras, develop the corresponding cohomology…

Representation Theory · Mathematics 2019-05-31 Sami Mabrouk , Abdenacer Makhlouf , Sonia Massoud

In this paper, we define representations and cohomology of weighted Rota-Baxter Lie algebras. As applications of cohomology, we study abelian extensions and formal $1$-parameter deformations weighted Rota-Baxter Lie algebras. Finally, we…

Representation Theory · Mathematics 2021-09-07 Apurba Das

The purpose of this paper is to extend the cohomology and conformal derivation theories of the classical Lie conformal algebras to Hom-Lie conformal algebras. In this paper, we develop cohomology theory of Hom-Lie conformal algebras and…

Rings and Algebras · Mathematics 2017-11-23 Jun Zhao , Lamei Yuan , Liangyun Chen

The notion of a matched pair of Lie algebras was introduced in the study of Lie bialgebras and Poisson-Lie groups. In this paper, we introduce representations and cohomology of a matched pair of Lie algebras. We show that there is a…

Representation Theory · Mathematics 2024-03-12 Anusuiya Baishya , Apurba Das

This paper introduces the notion of Hom-Lie color algebra, which is a natural general- ization of Hom-Lie (super)algebras. Hom-Lie color algebras include also as special cases Lie (super) algebras and Lie color algebras. We study the…

Rings and Algebras · Mathematics 2012-05-01 Lamei Yuan

Let G be a reductive algebraic group over a field of prime characteristic. One can associate to G (or subgroups thereof) its Lie algebra, its Frobenius kernels, and the finite Chevalley group of points over a finite field. The…

Representation Theory · Mathematics 2023-07-10 Christopher P. Bendel

Let $(L, \alpha)$ be a Hom-Lie-Yamaguti superalgebra. We first introduce the representation and cohomology theory of Hom-Lie-Yamaguti superalgebras. Furthermore, we introduce the notions of generalized derivations and representations of…

Rings and Algebras · Mathematics 2019-11-25 Shuangjian Guo , Xiaohui Zhang , Shengxiang Wang

Classes of $G$-Hom-associative algebras are constructed as deformations of $G$-associative algebras along algebra endomorphisms. As special cases, we obtain Hom-associative and Hom-Lie algebras as deformations of associative and Lie…

Rings and Algebras · Mathematics 2009-08-22 Donald Yau

A difference Lie group is a Lie group equipped with a difference operator, equivalently a crossed homomorphism with respect to the adjoint action. In this paper, first we introduce the notion of a representation of a difference Lie group,…

Rings and Algebras · Mathematics 2024-03-25 Jun Jiang , Yunnan Li , Yunhe Sheng

The aim of this paper is to develop the theory of Hom-coalgebras and related structures. After reviewing some key constructions and examples of quasi-deformations of Lie algebras involving twisted derivations and giving rise to the class of…

Rings and Algebras · Mathematics 2008-11-24 Abdenacer Makhlouf , Sergei Silvestrov

The purpose of the present paper is to study representations and cohomologies of differential 3-Lie algebras with any weight. We introduce the representation of a differential 3-Lie algebra. Moreover,we develop cohomology theory of a…

Rings and Algebras · Mathematics 2022-04-19 Qinxiu Sun , Shan Chen

In this article, we introduce a new cohomology theory associated to a Lie 2-algebras. This cohomology theory is shown to extend the classical cohomology theory of Lie algebras; in particular, we show that the second cohomology group…

Category Theory · Mathematics 2022-08-25 Camilo Angulo

The present research paper investigates the intricate fields of Hom-Lie algebra and Hom-Lie coalgebra, providing a complete analysis of their key concepts and important examples. Precisely, the paper introduces the concept of Hom-Lie…

Rings and Algebras · Mathematics 2023-07-04 Asif Sania , Basdouri Imed , Sadraoui Mohamed Amin

In this thesis, we introduce a new cohomology theory associated to a Lie 2-algebras and a new cohomology theory associated to a Lie 2-group. These cohomology theories are shown to extend the classical cohomology theories of Lie algebras and…

Differential Geometry · Mathematics 2018-11-09 Camilo Angulo

The aim of this paper is to provide cohomologies of $n$-ary Hom-Nambu-Lie algebras governing central extensions and one parameter formal deformations. We generalize to $n$-ary algebras the notions of derivations and representation…

Rings and Algebras · Mathematics 2011-07-20 F. Ammar , S. Mabrouk , A. Makhlouf

We revisit the cohomological index theorem for elliptic elements in the universal enveloping algebra of a Lie groupoid previously proved by the authors. We prove a Thom isomorphism for Lie algebroids which enables us to rewrite the…

Differential Geometry · Mathematics 2013-08-02 M. J. Pflaum , H. Posthuma , X. Tang

In the present paper, we define the new class of representation on $n$-Lie algebra that is called as generalized representation. We study the cohomology theory corresponding to generalized representations of $n$-Lie algebras and show its…

Representation Theory · Mathematics 2022-07-12 Afi Maha , Sania Asif , Chouaibi Sami , Basdouri Imed

In this paper, first we introduce the notion of an omni-representation of a Leibniz algebra $\g$ on a vector space $V$ as a Leibniz algebra homomorphism from $\g$ to the omni-Lie algebra $\gl(V)\oplus V$. Then we introduce the…

Rings and Algebras · Mathematics 2024-03-25 Zhangju Liu , Yunhe Sheng

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

This paper introduces the concept of representations for Com-PreLie algebras and develops corresponding cohomology theories, examining how cohomology groups can be applied in the context of Com-PreLie algebras. Initially, we utilize the…

Rings and Algebras · Mathematics 2025-10-29 Tao Zhang , Ying-Hua Lu