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Leibniz superalgebras with nilindex $n + m$ and characteristic sequence $(n-1, 1 \ | \ m)$ divided into four parametric classes that contain a set of non-isomorphic superalgebras. In this paper, we give a complete classification of solvable…

Rings and Algebras · Mathematics 2024-02-14 Khudoyberdiyev A. Kh. , Muratova Kh. A

It was recently shown that each C*-algebra generated by a faithful irreducible representation of a finitely generated, torsion free nilpotent group is classified by its ordered K-theory. For the three step nilpotent group $UT(4,\mathbb{Z})$…

Operator Algebras · Mathematics 2016-07-11 Caleb Eckhardt , Craig Kleski , Paul McKenney

Let ${\mathfrak g}$ be a finite dimensional Lie algebra over a field of characteristic 0, with solvable radical ${\mathfrak r}$ and nilpotent radical ${\mathfrak n}=[{\mathfrak g},{\mathfrak r}]$. Given a finite dimensional ${\mathfrak…

Representation Theory · Mathematics 2014-11-04 Leandro Cagliero , Fernando Szechtman

We adopt the $p$-group generation algorithm to classify small-dimensional nilpotent Lie algebras over small fields. Using an implementation of this algorithm, we list the nilpotent Lie algebras of dimension at most~9 over $\F_2$ and those…

Rings and Algebras · Mathematics 2016-09-07 Csaba Schneider

We determine the complete degeneration picture inside the variety of nilpotent associative algebras of dimension 3 over an algebraically closed field of characteristic not equal to 2. Comparing with the discussion in [Ivanova N.M. and…

Rings and Algebras · Mathematics 2024-08-20 N. M. Ivanova , C. A. Pallikaros

In this paper, using the notions of perturbation and contraction of Lie and Leibniz algebras, we show that the algebraic varieties of Leibniz and nilpotent Leibniz algebras of dimension greater than 2 are reducible.

Rings and Algebras · Mathematics 2017-02-13 J. M. Ancochea Bermudez , Juan Margalef-Bentabol

In this paper we give the complete classification of $5$-dimensional complex solvable symmetric Leibniz algebras.

Rings and Algebras · Mathematics 2025-05-21 Iroda Choriyeva , Abror Khudoyberdiyev

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

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 $p$-filiform non-Lie Leibniz algebra $(n-p\geq4)$ and the…

Rings and Algebras · Mathematics 2019-02-13 J. Q. Adashev , L. M. Camacho , B. A. Omirov

Every finite dimensional real representation of a compact real semisimple Lie algebra determines a metric 2-step nilpotent Lie algebra and a corresponding simply connected metric 2-step nilpotent Lie group N. We study the differential…

Differential Geometry · Mathematics 2008-06-18 Patrick Eberlein

We obtain the functions that bound the dimensions of finite dimensional nilpotent associative or Lie algebras of class 2 over an algebraically closed field in terms of the dimensions of their commutative subalgebras. As a result, we also…

Rings and Algebras · Mathematics 2014-08-12 Maria V. Milentyeva

We determine normal forms of the multiplication of four-dimensional anti-commutative algebras over a field $\mathbb K$ of characteristic zero having an analogous family of flags of subalgebras as the four-dimensional non-Lie binary Lie…

Rings and Algebras · Mathematics 2022-09-01 Ágota Figula , Péter T. Nagy

Let $ L $ be a finite dimensional nilpotent Lie algebra and $ d $ be the minimal number generators for $ L/Z(L). $ It is known that $ \dim L/Z(L)=d \dim L^{2}-t(L)$ for an integer $ t(L)\geq 0. $ In this paper, we classify all finite…

Rings and Algebras · Mathematics 2023-10-17 A. Shamsaki , P. Niroomand

This article provides a complete description of the differential Gerstenhaber algebras of all nilpotent complex structures on any real six-dimensional nilpotent algebra. As an application, we classify all pseudo-K\"ahlerian complex…

Algebraic Geometry · Mathematics 2007-10-20 Richard Cleyton , Yat Sun Poon

We classify the four dimensional perfect non-simple evolution algebras over a field having characteristic different from 2 and in which there are roots of orders 2, 3 and 7.

Rings and Algebras · Mathematics 2018-01-12 Yolanda Cabrera Casado , Muge Kanuni , Mercedes Siles Molina

In 1973, Gauger proposed a generator-relation method and a duality theory for two-step nilpotent Lie algebras. Based upon these, he classified two-step nilpotent Lie algebras of dimension $8$. In 1999, Galitski and Timashev continued this…

Rings and Algebras · Mathematics 2019-07-31 Shenglong Hu , Liqun Qi , Honglian Zhang

The work is devoted to the variety of $2$-dimensional algebras over an algebraically closed field. Firstly, we classify such algebras modulo isomorphism. Then we describe the degenerations and the closures of principal algebra series in the…

Rings and Algebras · Mathematics 2020-04-03 Ivan Kaygorodov , Yury Volkov

We classify Nichols algebras of irreducible Yetter-Drinfeld modules over nonabelian groups satisfying an inequality for the dimension of the homogeneous subspace of degree two. All such Nichols algebras are finite-dimensional, and all known…

Quantum Algebra · Mathematics 2011-05-31 M. Graña , I. Heckenberger , L. Vendramin

This is a short presentation of some classical results on finite dimensional complex Lie algebras (classification of nilpotent Lie algebras, deformations and perturbations, contractions and rigidity). We present some applications to…

Rings and Algebras · Mathematics 2008-05-06 Michel Goze

The study of central derivations in low-dimensional algebraic structures is a crucial area of research in mathematics, with applications in understanding the internal symmetries and deformations of these structures. In this article, we…

Rings and Algebras · Mathematics 2024-11-26 Basdouri Imed , Jean Lerbet , Bouzid Mosbahi