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We study complex projective varieties that parametrize (finite-dimensional) filiform Lie algebras over C, using equations derived by Millionshchikov. In the infinite-dimensional case we concentrate our attention on N-graded Lie algebras of…

Representation Theory · Mathematics 2019-08-15 Tatyana Barron , Dmitry Kerner , Marina Tvalavadze

Endomorphisms of Weyl algebras are studied using bimodules. Initially, for a Weyl algebra over a field of characteristic zero, Bernstein's inequality implies that holonomic bimodules finitely generated from the right or left form a monoidal…

Rings and Algebras · Mathematics 2020-09-16 Niels Lauritzen , Jesper Funch Thomsen

For each $n\ge2$ we classify all $n$-dimensional algebras over an arbitrary infinite field which have the property that the $n$-dimensional abelian Lie algebra is their only proper degeneration.

Rings and Algebras · Mathematics 2017-02-15 N. M. Ivanova , C. A. Pallikaros

We continue the algebraic study of almost inner derivations of Lie algebras over a field of characteristic zero and determine these derivations for free nilpotent Lie algebras, for almost abelian Lie algebras, for Lie algebras whose…

Rings and Algebras · Mathematics 2019-05-21 Dietrich Burde , Karel Dekimpe , Bert Verbeke

Engel subalgebras of finite-dimensional n-Lie algebras are shown to have similar properties to those of Lie algebras. Using these, it is shown that an n-Lie algebra, all of whose maximal subalgebras are ideals, is nilpotent. A primitive…

Rings and Algebras · Mathematics 2008-11-07 Donald W. Barnes

Metabelian algebras are introduced and it is shown that an algebra $A$ is metabelian if and only if $A$ is a nilpotent algebra having the index of nilpotency at most $3$, i.e. $x y z t = 0$, for all $x$, $y$, $z$, $t \in A$. We prove that…

Rings and Algebras · Mathematics 2015-07-10 G. Militaru

The indecomposable solvable Lie algebras with graded nilradical of maximal nilindex and a Heisenberg subalgebra of codimension one are analyzed, and their generalized Casimir invariants calculated. It is shown that rank one solvable…

Mathematical Physics · Physics 2009-11-11 J M Ancochea , R Campoamor-Stursberg , L Garcia Vergnolle

In this paper we consider the problem of classifying the $(n-5)$-filiform Lie algebras. This is the first index for which infinite parametrized families appear, as can be seen in dimension $7.$ Moreover we obtain large families of…

Rings and Algebras · Mathematics 2007-05-23 Jose Maria Ancochea , Otto Rutwig Campoamor

We describe infinitesimal deformations of complex naturally graded filiform Leibniz algebras. It is known that any $n$-dimensional filiform Lie algebra can be obtained by a linear integrable deformation of the naturally graded algebra…

Algebraic Geometry · Mathematics 2015-06-15 A. Kh. Khudoyberdiyev , B. A Omirov

In this paper, we introduce the concept of inner derivations of low-dimensional Zinbiel algebras and investigate their properties. The primary objective of this study is to develop an algorithm to characterize the inner derivations of any…

Rings and Algebras · Mathematics 2024-12-31 Bouzid Mosbahi , Ahmed Zahari

The unipotent groups are an important class of algebraic groups. We show that techniques used to compute with finitely generated nilpotent groups carry over to unipotent groups. We concentrate particularly on the maximal unipotent subgroup…

Group Theory · Mathematics 2007-05-23 Arjeh M. Cohen , Sergei Haller , Scott H. Murray

We study finite-dimensional nonassociative algebras. We prove the implicit function theorem for such algebras. This allows us to establish a correspondence between such algebras and quasigroups, in the spirit of classical correspondence…

Rings and Algebras · Mathematics 2022-08-23 Yuri Bahturin , Alexander Olshanskii

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

In this paper we study the Lie algebras of derivations of two-step nilpotent algebras. We obtain a class of Lie algebras with trivial center and abelian ideal of inner derivations. Among these, the relations between the complex and the real…

Rings and Algebras · Mathematics 2023-10-12 Gianmarco La Rosa , Manuel Mancini

Given a finitely generated free monoid $X$ and a morphism $\phi : X\to X$, we show that one can construct an algebra, which we call an iterative algebra, in a natural way. We show that many ring theoretic properties of iterative algebras…

Rings and Algebras · Mathematics 2015-03-06 Jason P. Bell , Blake W. Madill

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

Small and Zelmanov posed the question whether every element of a graded algebra over an uncountable field must be nilpotent, provided that the homogeneous elements are nilpotent. This question has recently been answered in the negative by…

Rings and Algebras · Mathematics 2009-04-24 Alon Regev

We show that the answer to the question in the title is: ``Yes, for finite algebras.''

Rings and Algebras · Mathematics 2019-07-16 Keith A. Kearnes , Ágnes Szendrei

The paper presents two new results concerning the varieties of Leibnitz algebras. In the case of prime characteristic p of the base field constructed example not nilpotent variety of Leibnitz algebras satisfying an Engel condition order p.…

Rings and Algebras · Mathematics 2014-05-13 Yu. Yu. Frolova , T. V. Skoraya

Let $\FRAK{g}$ be a classical simple Lie superalgebra. To every nilpotent orbit $\cal O$ in $\FRAK{g}_0$ we associate a Clifford algebra over the field of rational functions on $\cal O$. We find the rank, $k(\cal O)$ of the bilinear form…

Representation Theory · Mathematics 2007-05-23 Ian M. Musson
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