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The space $\mathcal{Z}$ of leftinvariant orthogonal almost complex structures, keeping the orientation, on 6-dimensional Lie groups is researched. To get explicit view of this space elements the isomorphism of $\mathcal{Z}$ and…

Differential Geometry · Mathematics 2012-11-05 Natalia Daurtseva

A local classification of all Poisson-Lie structures on an infinite-dimensional group $G_{\infty}$ of formal power series is given. All Lie bialgebra structures on the Lie algebra ${\Cal G}_{\infty}$ of $G_{\infty}$ are also classified.

q-alg · Mathematics 2009-10-28 Boris Kupershmidt , Ognyan Stoyanov

Let $k$ be a field of characteristic not two or three. We classify up to isomorphism all finite-dimensional Lie superalgebras $\mathfrak{g}=\mathfrak{g}_0\oplus \mathfrak{g}_1$ over $k$, where $\mathfrak{g}_0$ is a three-dimensional simple…

Representation Theory · Mathematics 2019-12-19 Philippe Meyer

We classify all of the 4-dimensional linear Poisson structures of which the corresponding Lie algebras can be considered as the extension by a derivation of 3-dimensional unimodular Lie algebras. The affine Poisson structures on R^3 are…

Differential Geometry · Mathematics 2015-05-13 Yunhe Sheng

We illustrate some simple ideas that can be used for obtaining a classification of small-dimensional solvable Lie algebras.Using these we obtain the classification of 3 and 4 dimensional solvable Lie algebras (over fields of any…

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

With the aid of the $6j$-symbol, we classify all uniserial modules of $\mathfrak{sl}(2)\ltimes \mathfrak{h}_{n}$, where $\mathfrak{h}_{n}$ is the Heisenberg Lie algebra of dimension $2n+1$.

Representation Theory · Mathematics 2016-11-23 Leandro Cagliero , Luis Gutiérrez Frez , Fernando Szechtman

In this paper, we classify eight-dimensional non-solvable Lie algebras that support a symplectic structure. As well as a complete classification is given, up to symplectomorphism, of eight-dimensional symplectic non-solvable Lie algebras.

Symplectic Geometry · Mathematics 2023-05-23 T. Aït Aissa , M. W. Mansouri

The main goal is to classify 4-dimensional real Lie algebras $\g$ which admit a para-hypercomplex structure. This is a step toward the classification of Lie groups admitting the corresponding left-invariant structure and therefore…

Differential Geometry · Mathematics 2007-05-23 N. Blazic , S. Vukmirovic

In this paper we classify irreducible integrable representations of loop toroidal Lie algebras with finite dimensional weight spaces. In both the cases we classify modules, when a part of center acts non-trivially and trivially on modules.

Representation Theory · Mathematics 2022-11-09 Priyanshu Chakraborty , Punita Batra

This paper is devoted to the classification and studying properties of complex unital $3$-dimensional structurable algebras. We provide a complete list of non-isomorphic classes, identifying five algebras for type $(2, 1)$ and two algebras…

Rings and Algebras · Mathematics 2026-03-05 Kobiljon Abdurasulov , Maqpal Eraliyeva , Ivan Kaygorodov

We give a full classification of Lie algebras of specific type in complexified Clifford algebras. These sixteen Lie algebras are direct sums of subspaces of quaternion types. We obtain isomorphisms between these Lie algebras and classical…

Mathematical Physics · Physics 2024-12-24 D. S. Shirokov

The main aim of this paper is to classify the distinct multiplicative Lie algebra structures (up to isomorphism) on a given group. We also see that for a given group $G$, every homomorphism from the non-abelian exterior square $G \wedge G$…

Group Theory · Mathematics 2019-12-13 Mani Shankar Pandey , Sumit Kumar Upadhyay

We classify six-dimensional Lie groups which admit a left-invariant half-flat SU(3)-structure and which split in a direct product of three-dimensional factors. Moreover, a complete list of those direct products is obtained which admit a…

Differential Geometry · Mathematics 2010-07-29 Fabian Schulte-Hengesbach

In this paper, under some natural condition, a complete classification of compatible left-symmetric conformal algebraic structures on the Lie conformal algebra $\mathcal{W}(a,b)$ is presented. Moreover, applying this result, we obtain a…

Rings and Algebras · Mathematics 2018-08-21 Deng Liu , Yanyong Hong , Hao Zhou , Nuan Zhang

In this paper, we are interested in solvable complete Lie algebras, over the field $\K=\R$ or $\mathbb{C}$, which admit a symplectic structure. Specifically, important classes are studied, and a description of complete Lie Algebra with the…

Differential Geometry · Mathematics 2024-07-01 M. Benyoussef , M. W. Mansouri , SM. Sbai

We present a systematic study of symmetries, invariants and moduli spaces of classes of coframes. We introduce a classifying Lie algebroid to give a complete description of the solution to Cartan's realization problem that applies to both…

Differential Geometry · Mathematics 2012-10-08 Rui Loja Fernandes , Ivan Struchiner

We give a complete classification (up to isomorphism) of Lie conformal algebras which are free of rank two as $\C[\partial]$-modules, and determine their automorphism groups.

Representation Theory · Mathematics 2019-07-12 Rekha Biswal , Abdelkarim Chakhar , Xiao He

A new class of infinite dimensional simple Lie algebras over a field with characteristic 0 are constructed. These are examples of non-graded Lie algebras. The isomorphism classes of these Lie algebras are determined. The structure space of…

Quantum Algebra · Mathematics 2007-05-23 Yucai Su

We show how one can associate to a given class of finite type G-structures a classifying Lie algebroid. The corresponding Lie groupoid gives models for the different geometries that one can find in the class, and encodes also the different…

Differential Geometry · Mathematics 2008-07-25 Rui Loja Fernandes , Ivan Struchiner

The explicit list of all almost factorizable Lie bialgebra structures on real absolutely simple Lie algebras is given.

Quantum Algebra · Mathematics 2007-05-23 Nicolas Andruskiewitsch , Patricia Jancsa