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First, we construct some families of nonsolvable anticommutative algebras, solvable Lie algebras and even nilpotent Lie algebras, that can be endowed with the structure of a simple Hom-Lie algebra. This situation shows that a classification…

Rings and Algebras · Mathematics 2022-05-23 Youness El Kharraf

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

We complete the classification of the 6-dimensional quasi-Hopf algebras, by proving that any such algebra is semisimple. As byproducts, we provide examples of 6-dimensional quasi-bialgebras that are not semisimple as algebras, as well as…

Quantum Algebra · Mathematics 2024-10-07 Daniel Bulacu , Matteo Misurati

We consider seven-dimensional unimodular Lie algebras $\mathfrak{g}$ admitting exact $G_2$-structures, focusing our attention on those with vanishing third Betti number $b_3(\mathfrak{g})$. We discuss some examples, both in the case when…

Differential Geometry · Mathematics 2020-05-28 Marisa Fernández , Anna Fino , Alberto Raffero

We classify the almost abelian Lie algebras $\mathfrak g_A=\mathbb R e_0 \ltimes_A \mathbb R^{2n-1}$ admitting complex or symplectic structures. The matrix $A\in M(2n-1,\mathbb R )$ encodes the adjoint action of $e_0$ on the abelian ideal…

Differential Geometry · Mathematics 2025-06-02 Romina M. Arroyo , María L. Barberis , Verónica S. Diaz , Yamile Godoy , Isabel Hernández

L-Infinity structures have been a subject of recent interest in physics, where they occur in closed string theory and in gauge theory. This paper provides a class of easily constructible examples of $L_n$ and $L_{\infty}$ structures on…

Quantum Algebra · Mathematics 2007-05-23 Marilyn Daily

In this note we study associative dialgebras proving that the most interesting such structures arise precisely when the algebra is not semiprime. In fact the presence of some "perfection" property (simpleness, primitiveness, primeness or…

Rings and Algebras · Mathematics 2010-12-23 Candido Martin Gonzalez

In this paper we focus on the structure of the variety of Lie algebras with a finite number of ideals and their graph representations using Hasse diagrams. The large number of necessary conditions on the algebraic structure of this type of…

Rings and Algebras · Mathematics 2023-07-11 Pilar Benito , Jorge Roldán-López

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

We introduce anyonic Lie algebras in terms of structure constants. We provide the simplest examples and formulate some open problems.

q-alg · Mathematics 2009-10-30 S. Majid

We study the structure of graded Lie superalgebras with arbitrary dimension and over an arbitrary field ${\mathbb K}$. We show that any of such algebras ${\mathfrak L}$ with a symmetric $G$-support is of the form ${\mathfrak L} = U +…

Representation Theory · Mathematics 2024-03-14 Antonio J. Calderón , José M. Sanchez

In this paper we look into the structure of finite-dimensional graded superalgebras of various types such as associative, Lie and Jordan over an algebraically closed field of characteristic zero.

Rings and Algebras · Mathematics 2007-09-13 M. Tvalavadze , T. Tvalavadze

In this paper, we investigate the ideals of semidirect products of L-algebras and the structure of simple L-algebras. We provide a precise characterization of the ideals of semidirect products and describe the structure of their prime…

Rings and Algebras · Mathematics 2025-12-10 Silvia Properzi , Yufei Qin

Let $\mathfrak{g}$ be a real finite-dimensional Lie algebra equipped with a symmetric bilinear form $\langle\cdot,\cdot\rangle$. We assume that $\langle\cdot,\cdot\rangle $ is nil-invariant. This means that every nilpotent operator in the…

Differential Geometry · Mathematics 2019-12-11 Oliver Baues , Wolfgang Globke , Abdelghani Zeghib

We study symplectic structures on filiform Lie algebras -- nilpotent Lie algebras of the maximal length of the descending central sequence. In the present article we classify the Lie algebras with the structure relations of the following…

Rings and Algebras · Mathematics 2007-05-23 Dmitri V. Millionschikov

Denote $\fm_2$ the infinite dimensional $\N$-graded Lie algebra defined by the basis $e_i$ for $i\geq 1$ and by relations $[e_1,e_i]=e_{i+1}$ for all $i\geq 2$, $[e_2,e_j]=e_{j+2}$ for all $j\geq 3$. We compute in this article the bracket…

Representation Theory · Mathematics 2008-08-27 Alice Fialowski , Friedrich Wagemann

This paper introduces a SAT-based technique that calculates a compact and complete symmetry-break for finite model finding, with the focus on structures with a single binary operation (magmas). Classes of algebraic structures are typically…

Logic in Computer Science · Computer Science 2025-02-17 Marek Dančo , Mikoláš Janota , Michael Codish , João Jorge Araújo

A method to construct in explicit form the generators of the simple roots of an arbitrary finite-dimensional representation of a quantum or standard semisimple algebra is found. The method is based on general results from the global theory…

Mathematical Physics · Physics 2009-10-31 A. N. Leznov

Dekimpe and Ongenae constructed infinitely many pairwise non-isomorphic complete left-symmetric structures on $\mathbb{R}^n$ for $n\geq 6$. In this paper, we construct a family of complete left-symmetric structures on the cotangent Lie…

Rings and Algebras · Mathematics 2025-10-17 Naoki Kato

All exactly integrable systems connected with the semisimple algebras of the second rank with an arbitrary choice of the grading in them are presented in explicit form. General solution of such systems are expressed in terms of the matrix…

Mathematical Physics · Physics 2007-05-23 A. N. Leznov