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We classify nilpotent Lie algebras with complex structures of weakly non-nilpotent type in real dimension eight, which is the lowest dimension where they arise. Our study, together with previous results on strongly non-nilpotent structures,…

Differential Geometry · Mathematics 2025-02-10 A. Latorre , L. Ugarte

The paper is devoted studying solvable Leibniz algebras with a nilradical possessing the codimension equals the number of its generators. We describe this class in non-split nilradical case. Then the case of split nilradical is worked out.…

Rings and Algebras · Mathematics 2022-01-11 K. K. Abdurasulov , B. A. Omirov , I. S. Rakhimov

The paper is devoted to give a complete classification of five-dimension nilpotent evolution algebras over an algebraically closed field. We obtained a list of 27 isolated non-isomorphic nilpotent evolution algebras and 2 families of…

Commutative Algebra · Mathematics 2015-09-01 A. S. Hegazi , Hani Abdelwahab

We describe all central extensions of all $3$-dimensional non-zero complex Zinbiel algebras. As a corollary, we have a full classification of $4$-dimensional non-trivial complex Zinbiel algebras and a full classification of $5$-dimensional…

Rings and Algebras · Mathematics 2021-11-02 María Alejandra Alvarez , Thiago Castilho de Mello , Ivan Kaygorodov

In this paper we investigate the description of the complex Leibniz superalgebras with nilindex n+m, where n and m ($m\neq 0$) are dimensions of even and odd parts, respectively. In fact, such superalgebras with characteristic sequence…

Rings and Algebras · Mathematics 2009-03-27 J. R. Gomez , A. Kh. Khudoyberdiyev , B. A. Omirov

The present article is a part of the study of solvable Leibniz algebras with a given nilradical. In this paper solvable Leibniz algebras, whose nilradicals is naturally graded quasi-filiform algebra and the complemented space to the…

Rings and Algebras · Mathematics 2021-05-28 K. K. Abdurasulovand , J. Q. Adashev

In general, the study of gradations has always represented a cornerstone in algebra theory. In particular, \textit{naturally graded} seems to be the first and the most relevant gradation when it comes to nilpotent algebras, a large class of…

Rings and Algebras · Mathematics 2024-01-25 Luisa Camacho , Rosa M. Navarro , J. M. Sánchez

Recently, by A. Elduque and A. Labra a new technique and a type of an evolution algebra are introduced. Several nilpotent evolution algebras defined in terms of bilinear forms and symmetric endomorphisms are constructed. The technique then…

Rings and Algebras · Mathematics 2017-11-15 B. A. Omirov , U. A. Rozikov , M. V. Velasco

In this paper we introduce the concept of $n$-Lie-isoclinism on non-Lie Leibniz algebras. Among the results obtained, we provide several characterizations of $n$-Lie-isoclinic classes of Leibniz algebras. Also, we provide a characterization…

Rings and Algebras · Mathematics 2018-05-17 G. R. Biyogmam , J. M. Casas

We classify hom-Lie structures with nilpotent twisting map on $3$-dimensional complex Lie algebras, up to isomorphism, and classify all degenerations in such family. The ideas and techniques presented here can be easily extrapolated to…

Rings and Algebras · Mathematics 2019-11-06 Edison Alberto Fernández-Culma , Nadina Elizabeth Rojas

If one wishes to define a complete Leibniz algebra in such a way as to extend the notion of a complete Lie algebra, two distinct definitions can be found in the current literature. Since biderivations on complete Lie algebras have already…

Rings and Algebras · Mathematics 2025-10-21 Alfonso Di Bartolo , Francesco Paolo Di Fatta , Gianmarco La Rosa

We investigate Lie algebras whose Lie bracket is also an associative or cubic associative multiplication to characterize the class of nilpotent Lie algebras with a nilindex equal to 2 or 3. In particular we study the class of 2-step…

Rings and Algebras · Mathematics 2013-10-09 Michel Goze , Elisabeth Remm

First we describe the Skjelbred-Sund method for classifying nilpotent Lie algebras. Then we use it to classify 6-dimensional nilpotent Lie algebras over any field of characteristic not 2. The proof of this classification is essentially…

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

We provide a classification, up to isomorphism, of four-dimensional ternary Leibniz algebras over an algebraically closed field of characteristic zero. For each non-abelian algebra in the classification, we explicitly determine its centroid…

Rings and Algebras · Mathematics 2026-02-26 Ahmed Zahari Abdou Damdji

We present a complete list of 6-dimensional Manin triples or, equivalently, of 3-dimensional Lie bialgebras. We start from the well known classification of 3-dimensional real Lie algebras and assume the canonical bilinear form on the…

Quantum Algebra · Mathematics 2007-05-23 L. Hlavaty , L. Snobl

In this paper, we consider Leibniz algebras with derivations. A pair consisting of a Leibniz algebra and a distinguished derivation is called a LeibDer pair. We define a cohomology theory for LeibDer pair with coefficients in a…

Rings and Algebras · Mathematics 2020-03-19 Apurba Das

In this work we investigate the complex Leibniz superalgebras with characteristic sequence $(n-1, 1 | m_1, ..., m_k)$ and with nilindex equal to $n+m.$ We prove that such superalgebras with the condition $m_2\neq0$ have nilindex less than…

Rings and Algebras · Mathematics 2008-07-01 S. Albeverio , B. A. Omirov , A. Kh. Khudoyberdiyev

We present structural properties of Lie algebras admitting symmetric, invariant and nondegenerate bilinear forms. We show that these properties are not satisfied by nilradicals of parabolic subalgebras of real split forms of complex simple…

Differential Geometry · Mathematics 2016-05-31 Viviana del Barco

We describe a method for classifying the Novikov algebras with a given associated Lie algebra. Subsequently we give the classification of the Novikov algebras of dimension 3 over R and C, as well as the classification of the 4-dimensional…

Rings and Algebras · Mathematics 2011-06-30 Dietrich Burde , Willem A. de Graaf

We investigate the class of finite dimensional not necessary associative algebras that have slowly growing length, that is, for any algebra in this class its length is less than or equal to its dimension. We show that this class is…

Rings and Algebras · Mathematics 2022-03-09 Alexander Guterman , Dmitry Kudryavtsev