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The first aim of this paper is to show that any finite-dimensional reductive Lie algebra and its finite-dimensional completely reducible representation can be embedded into some PC Lie algebra. The second aim is to find the structure of a…

Representation Theory · Mathematics 2017-03-06 Nagatoshi Sasano

Lie algebras of smooth sections are Lie algebras obtained from bundles of Lie algebras, where the latter are vector bundles of which the fibers are Lie algebras. We also consider the $\operatorname{C}^k$-sections for $k \in \mathbb{N}$.…

Rings and Algebras · Mathematics 2010-02-11 Hasan Gündoğan

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

This paper describes a formal theory of smooth vector fields, Lie groups and the Lie algebra of a Lie group in the theorem prover Isabelle. Lie groups are abstract structures that are composable, invertible and differentiable. They are…

Logic in Computer Science · Computer Science 2024-07-30 Richard Schmoetten , Jacques D. Fleuriot

An algebra $L$ over a field $\Bbb F$, in which product is denoted by $[\,,\,]$, is said to be \textit{ Lie type algebra} if for all elements $a,b,c\in L$ there exist $\alpha, \beta\in \Bbb F$ such that $\alpha\neq 0$ and $[[a,b],c]=\alpha…

Rings and Algebras · Mathematics 2014-11-04 N. Yu. Makarenko

We construct classes of $Z_2 \times Z_2$-graded Lie algebras corresponding to the classical Lie algebras, in terms of their defining matrices. For the $Z_2 \times Z_2$-graded Lie algebra of type $A$, the construction coincides with the…

Mathematical Physics · Physics 2023-09-12 N. I. Stoilova , J. Van der Jeugt

The purpose of this paper is to investigate $(n+1)$-Lie algebras induced by $n$-Lie algebras and trace maps. We highlight a comparison of their structure properties (solvability, nilpotency) and the cohomology groups as well as central…

Rings and Algebras · Mathematics 2025-01-16 Abdennour Kitouni , Abdenacer Makhlouf

In this note we analyse the Lie algebras of physical states stemming from lattice constructions on general even, self-dual lattices Gamma^{p,q} with p greater or equal to q. It is known that if the lattice is at most Lorentzian, the…

Quantum Algebra · Mathematics 2009-11-07 Axel Kleinschmidt

We propose a construction of lattices from (skew-) polynomial codes, by endowing quotients of some ideals in both number fields and cyclic algebras with a suitable trace form. We give criteria for unimodularity. This yields integral and…

Information Theory · Computer Science 2020-04-06 Grégory Berhuy , Frédérique Oggier

We show that the degree of a graded lattice ideal of dimension 1 is the order of the torsion subgroup of the quotient group of the lattice. This gives an efficient method to compute the degree of this type of lattice ideals.

Commutative Algebra · Mathematics 2024-02-07 Hiram H. Lopez , Rafael H. Villarreal

In the study of induced bilinear systems, the classical Lie algebra rank condition (LARC) is known to be impractical since it requires computing the rank everywhere. On the other hand, the transitive Lie algebra condition, while more…

Systems and Control · Electrical Eng. & Systems 2022-03-16 Gong Cheng , Wei Zhang , Jr-Shin Li

For every field $F$ which has a quadratic extension $E$ we show there are non-metabelian infinite-dimensional thin graded Lie algebras all of whose homogeneous components, except the second one, have dimension $2$. We construct such Lie…

Rings and Algebras · Mathematics 2021-01-29 M. Avitabile , A. Caranti , N. Gavioli , V. Monti , M. F. Newman , E. A. O'Brien

In this paper we identify the structure of complex finite-dimensional Leibniz algebras with associated Lie algebras $sl_2^1\oplus sl_2^2\oplus \dots \oplus sl_2^s\oplus R,$ where $R$ is a solvable radical. The classifications of such…

Rings and Algebras · Mathematics 2014-09-15 L. M. Camacho , S. Gómez-Vidal , B. A. Omirov , I. A. Karimjanov

Covering is a common type of data structure and covering-based rough set theory is an efficient tool to process this data. Lattice is an important algebraic structure and used extensively in investigating some types of generalized rough…

Artificial Intelligence · Computer Science 2012-09-26 Qingyin Li , William Zhu

We describe the structure and different features of Lie algebras in the Verlinde category, obtained as semisimplification of contragredient Lie algebras in characteristic $p$ with respect to the adjoint action of a Chevalley generator. In…

Representation Theory · Mathematics 2024-06-19 Iván Angiono , Julia Plavnik , Guillermo Sanmarco

A new structure, based on joining copies of a group by means of a \emph{twist}, has recently been considered to describe the brackets of the two exceptional real Lie algebras of type $G_2$ in a highly symmetric way. In this work we show…

Rings and Algebras · Mathematics 2025-01-07 Francisco Cuenca Carrégalo , Cristina Draper

The filiform and the quasi-filiform Lie algebras form a special class of nilpotent Lie algebras. The aim of this paper is to compute the index and provide regular vectors of this two class of nilpotent Lie algebras. we consider the graded…

Representation Theory · Mathematics 2012-12-10 Hadjer Adimi , Abdenacer Makhlouf

The intrinsic connection between lattice theory and topology is fairly well established, For instance, the collection of open subsets of a topological subspace always forms a distributive lattice. Persistent homology has been one of the…

Rings and Algebras · Mathematics 2014-02-03 Primož Škraba , João Pita Costa

We investigate Atiyah algebroids, i.e. the infinitesimal objects of principal bundles, from the viewpoint of Lie algebraic approach to space. First we show that if the Lie algebras of smooth sections of two Atiyah algebroids are isomorphic,…

Differential Geometry · Mathematics 2009-05-11 Janusz Grabowski , Alexei Kotov , Norbert Poncin

Bilattices (that is, sets with two lattice structures) provide an algebraic tool to model simultaneously the validity of, and knowledge about, sentences in an appropriate language. In particular, certain bilattices have been used to model…

Rings and Algebras · Mathematics 2013-11-13 L. M. Cabrer , A. P. K. Craig , H. A. Priestley
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