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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

In recent years, the notion of characteristic polynomial of representations of Lie algebras has been widely studied. This paper provides more properties of these characteristic polynomials. For simple Lie algebras, we characterize the…

Representation Theory · Mathematics 2023-08-10 Korkeat Korkeathikhun , Borworn Khuhirun , Songpon Sriwongsa , Keng Wiboonton

A study is made of real Lie algebras admitting compatible complex and product structures, including numerous 4-dimensional examples. If g is a Lie algebra with such a structure then its complexification has a hypercomplex structure. It is…

Differential Geometry · Mathematics 2007-05-23 Adrian Andrada , Simon Salamon

We give a complete classification of (n+2)-dimensional n-Lie algebras over an algebraically closed field of characteristic $2$, and provide a isomorphic criterion theorem of (n+2)-dimensional n-Lie algebras.

Mathematical Physics · Physics 2010-06-11 Ruipu Bai , Xiaoling Wang , Yaozhong Zhang

We classify the 6-dimensional Lie algebras of the form $g\times g$ that admit integrable complex structure. We also endow a Lie algebra of the kind $o(n)\oplus o(n)$ with such a complex structure. The motivation comes from geometric…

Differential Geometry · Mathematics 2020-05-19 Andrzej Czarnecki , Marcin Sroka

The objective of this paper is to develop diassociative analogues of Lie-theoretic results from Peggy Batten's 1993 dissertation. We first prove that covers of diassociative algebras are unique. Second, we show that the multiplier of a…

Rings and Algebras · Mathematics 2021-07-16 Erik Mainellis

We introduce the notion of Gamma-Lie bialgebra, where Gamma is a group. These objects give rise to cocommutative co-Poisson algebras, for which we construct quantization functors. This enlarges the class of co-Poisson algebras for which a…

Quantum Algebra · Mathematics 2010-09-15 B. Enriquez , G. Halbout

We consider the Lie algebra associated with the descending central series filtration of the pure braid group of a closed surface of arbitrary genus. R. Bezrukavnikov gave a presentation of this Lie algebra over the rational numbers. We show…

Algebraic Topology · Mathematics 2012-02-21 B. Enriquez , V. V. Vershinin

We introduce a remarkable subset "the stem" of the set of positive roots of a reduced root system. The stem determines several interesting decompositions of the corresponding reductive Lie algebra. It gives also a nice simple three…

Differential Geometry · Mathematics 2015-03-17 George Dimitrov , Vasil Tsanov

Lie antialgebras is a class of supercommutative algebras recently appeared in symplectic geometry. We define the notion of enveloping algebra of a Lie antialgebra and study its properties. We show that every Lie antialgebra is canonically…

Commutative Algebra · Mathematics 2010-07-26 Séverine Leidwanger , Sophie Morier-Genoud

In this paper, we attempt to develop the Schreier theory for two special types extensions of multiplicative Lie algebras.

Group Theory · Mathematics 2019-09-04 Mani Shankar Pandey , Sumit Kumar Upadhyay

We present a theory that produces several examples where the homotopy Lie algebra of a complex hyperplane arrangement is not finitely presented. We also present examples of hyperplane arrangements where the enveloping algebra of this Lie…

Algebraic Topology · Mathematics 2007-05-23 Jan-Erik Roos

After a short review of the classical Lie theorem, a finite dimensional Lie algebra of vector fields is considered and the most general conditions under which the integral curves of one of the fields can be obtained by quadratures in a…

Mathematical Physics · Physics 2017-01-17 José F. Cariñena , Fernando Falceto , Janusz Grabowski , Manuel F. Rañada

We present an extremely elementary construction of the simple Lie algebras over the complex numbers in all of their minuscule representations, using the vertices of various polytopes. The construction itself requires no complicated…

Representation Theory · Mathematics 2007-05-23 R. M. Green

The aim of this paper is to compare the structure and the cohomology spaces of Lie algebras and induced $3$-Lie algebras.

Rings and Algebras · Mathematics 2013-12-31 J. Arnlind , A. Kitouni , A. Makhlouf , S. Silvestrov

Since the introduction of the concept of isotopism of algebras by Albert in 1942, a prolific literature on the subject has been developed for distinct types of algebras. Nevertheless, there barely exists any result on the problem of…

Rings and Algebras · Mathematics 2017-05-11 O. J. Falcón , R. M. Falcón , J. Núñez

The purpose of this paper is to generalize some results on $n$-Lie algebras and $n$-Hom-Lie algebras to $n$-Hom-Lie color algebras. Then we introduce and give some constructions of $n$-Hom-Lie color algebras.

Quantum Algebra · Mathematics 2020-02-11 Ibrahima Bakayoko , Sergei Silvestrov

We give an algorithm for constructing the algebraic hull of a given matrix Lie algebra in characteristic zero. It is based on an algorithm for finding integral linear dependencies of the roots of a polynomial, that is probably of…

Rings and Algebras · Mathematics 2007-05-23 Claus Fieker , Willem de Graaf

It is known that a multiloop Lie algebra, which constructed using multiloop realization, can be a Lie torus if the given multiloop Lie algebra satisfies several conditions, and it is also known that a family of extended affine Lie algebras…

Rings and Algebras · Mathematics 2013-07-12 Katsuyuki Naoi

In this paper we show some multiplicity estimates theorems for a connected algebraic group (not necessarily commutative) $G$ over an algebraically closed subfield of $\mathbb{C}$. More specifically, under particular assumptions on the…

Algebraic Geometry · Mathematics 2015-12-15 Mario Huicochea