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In this paper, we introduce the notion of modified Rota-Baxter operators of non-zero weight on $3$-Lie algebras and provide some examples. Next, we give various constructions of modified Rota-Baxter operators of non-zero weight according to…

环与代数 · 数学 2026-01-06 Shuangjian Guo , Yufei Qin , Guodong Zhou

$\mathcal{O}$-operators are important in broad areas in mathematics and physics, such as integrable systems, the classical Yang-Baxter equation, pre-Lie algebras and splitting of operads. In this paper, a deformation theory of…

量子代数 · 数学 2020-07-27 Rong Tang , Chengming Bai , Li Guo , Yunhe Sheng

In the present paper, we aim to introduce the cohomology of $\mathcal{O}$-operators defined on the Hom-Lie conformal algebra concerning the given representation. To obtain the desired results, we describe three different cochain complexes…

环与代数 · 数学 2023-12-08 Sania Asif , Yao Wang , Bouzid Mosbahi , Imed Basdouri

This paper presents a cohomological study of modified Rota-Baxter associative algebras in the presence of derivations. The Modified Rota-Baxter operator, which is a modified version and closely related to the classical Rota-Baxter operator,…

环与代数 · 数学 2024-06-26 Imed Basdouri , Sami Benabdelhafidh , Mohamed Amin Sadraoui , Ripan Saha

In this paper, first, we introduce a notion of modified Rota-Baxter Lie algebras of weight $\mathrm{\lambda}$ with derivations (or simply modified Rota-Baxter LieDer pairs) and their representations. Moreover, we investigate cohomologies of…

环与代数 · 数学 2024-04-16 Imed Basdouri , Sami Benabdelhafidh , Mohamed Amin Sadraoui

A relative Rota-Baxter algebra is a triple $(A, M, T)$ consisting of an algebra $A$, an $A$-bimodule $M$, and a relative Rota-Baxter operator $T$. Using Voronov's derived bracket and a recent work of Lazarev et al., we construct an…

环与代数 · 数学 2024-06-19 Apurba Das , Satyendra Kumar Mishra

In this paper, we define the cohomology of a modified Rota-Baxter Leibniz algebra with coefficients in a suitable representation. As applications of our cohomology, we study formal one-parameter deformations and abelian extensions of…

环与代数 · 数学 2022-11-21 Yizheng Li , Dingguo Wang

A cohomology theory of weighted Rota-Baxter $3$-Lie algebras is introduced. Formal deformations, abelian extensions, skeletal weighted Rota-Baxter $3$-Lie 2-algebras and crossed modules of weighted Rota-Baxter 3-Lie algebras are interpreted…

K理论与同调 · 数学 2022-11-23 Shuangjian Guo , Yufei Qin , Kai Wang , Guodong Zhou

In this paper, we establish a local Lie theory for relative Rota-Baxter operators of weight $1$. First we recall the category of relative Rota-Baxter operators of weight $1$ on Lie algebras and construct a cohomology theory for them. We use…

环与代数 · 数学 2024-03-25 Jun Jiang , Yunhe Sheng , Chenchang Zhu

We determine the \emph{$L_\infty$-algebra} that controls deformations of a relative Rota-Baxter Lie algebra and show that it is an extension of the dg Lie algebra controlling deformations of the underlying LieRep pair by the dg Lie algebra…

量子代数 · 数学 2021-03-31 Andrey Lazarev , Yunhe Sheng , Rong Tang

The main purpose of this paper is to study cohomology and develop a deformation theory of restricted Lie algebras in positive characteristic $p>0$. In the case $p\geq3$, it is shown that the deformations of restricted Lie algebras are…

表示论 · 数学 2025-04-09 Quentin Ehret , Abdenacer Makhlouf

In this paper, we introduce the notions of relative Rota-Baxter operators of weight $1$ on Lie-Yamaguti algebras, and post-\LYA s, which is an underlying algebraic structure of relative Rota-Baxter operators of weight $1$. We give the…

环与代数 · 数学 2023-04-14 Jia Zhao , Senrong Xu , Yu Qiao

We study formal deformations of hom-Lie-Rinehart algebras. The associated deformation cohomology that controls deformations is constructed using multiderivations of hom-Lie-Rinehart algebras.

环与代数 · 数学 2020-07-21 Satyendra Kumar Mishra , Ashis Mandal

In this paper, we develop a new approach to the deformation theory of restricted Lie-Rinehart algebras in positive characteristic, based on the deformation theory of restricted morphisms introduced in our earlier work. We provide a full…

表示论 · 数学 2025-07-10 Quentin Ehret

In this paper, we first construct a differential graded Lie algebra that controls deformations of a Lie-Yamaguti algebra. Furthermore, a relative Rota-Baxter operator on a Lie-Yamaguti algebra is characterized as a Maurer-Cartan element in…

环与代数 · 数学 2023-10-10 Jia Zhao , Yu Qiao

The main purpose of this article is to develop an explicit derived deformation theory of algebraic structures at a high level of generality, encompassing in a common framework various kinds of algebras (associative, commutative, Poisson...)…

代数拓扑 · 数学 2025-03-11 Gregory Ginot , Sinan Yalin

Modified $r$-matrices are solutions of the modified classical Yang-Baxter equation, introduced by Semenov-Tian-Shansky, and play important roles in mathematical physics. In this paper, first we introduce a cohomology theory for modified…

数学物理 · 物理学 2025-05-06 Jun Jiang , Yunhe Sheng

In this paper, we define a new cohomology theory for multiplicative Hom-pre-Lie algebras which controls deformations of Hom-pre-Lie algebra structure. This new cohomology is a natural one by considering the structure map. We develop…

环与代数 · 数学 2023-08-01 Shuangjian Guo , Ripan Saha

In this paper, we consider compatible Hom-Leibniz algebra where the Hom map twists the operations in the compatible system. We consider a suitably graded Lie algebra whose Maurer-Cartan elements characterize the structure of compatible…

环与代数 · 数学 2024-05-13 Rinkila Bhutia , RB Yadav , Namita Behera

In this paper, we establish the cohomology of relative Rota-Baxter operators on Lie-Yamaguti algebras via the Yamaguti cohomology. Then we use this type of cohomology to characterize deformations of relative Rota-Baxter operators on…

环与代数 · 数学 2022-06-14 Jia Zhao , Yu Qiao