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Derivations extend the concept of differentiation from functions to algebraic structures as linear operators satisfying the Leibniz rule. In Lie algebras, derivations form a Lie algebra via the commutator bracket of linear endomorphisms.…

Rings and Algebras · Mathematics 2025-07-17 Alfonso Di Bartolo , Gianmarco La Rosa

This paper focuses on the derivations and automorphism groups of certain finite-dimensional associative algebras over the field of complex numbers. Using classification results for algebras of dimensions two, three, and four, along with…

Rings and Algebras · Mathematics 2025-01-06 Ahmed Zahari Abdou , Bouzid Mosbahi

An algebraic structure related to discrete zero curvature equations is established. It is used to give an approach for generating master symmetries of first degree for systems of discrete evolution equations and an answer to why there exist…

solv-int · Physics 2015-06-26 Wen-Xiu Ma , Benno Fuchssteiner

Nongraded infinite-dimensional Lie algebras appeared naturally in the theory of Hamiltonian operators, the theory of vertex algebras and their multi-variable analogues. They play important roles in mathematical physics. This survey article…

Quantum Algebra · Mathematics 2007-05-23 Xiaoping Xu

We generalize several important results from the perturbation theory of linear operators to the setting of semisimple orthogonal symmetric Lie algebras. These Lie algebras provide a unifying framework for various notions of matrix…

Representation Theory · Mathematics 2023-07-04 Emanuel Malvetti , Gunther Dirr , Frederik vom Ende , Thomas Schulte-Herbrüggen

We study the space of derivations for some finite-dimensional evolution algebras, depending on the twin partition of an associated directed graph. For evolution algebras with a twin-free associated graph we prove that the space of…

Rings and Algebras · Mathematics 2019-12-17 Yolanda Cabrera Casado , Paula Cadavid , Mary Luz Rodiño Montoya , Pablo M. Rodriguez

The role of automorphisms of infinite-dimensional Lie algebras in conformal field theory is examined. Two main types of applications are discussed; they are related to the enhancement and reduction of symmetry, respectively. The structures…

Quantum Algebra · Mathematics 2007-05-23 J. Fuchs , C. Schweigert

In this letter we investigate some aspects of the noncommutative differential geometry based on derivations of the algebra of endomorphisms of an oriented complex hermitian vector bundle. We relate it, in a natural way, to the geometry of…

Differential Geometry · Mathematics 2009-10-31 T. Masson

The spatiality of derivations of quasi *-algebras is investigated by means of representation theory. Moreover, in view of physical applications, the spatiality of the limit of a family of spatial derivations is considered.

Mathematical Physics · Physics 2009-04-01 F. Bagarello , A. Inoue , C. Trapani

We study the noncommutative differential geometry of the algebra of endomorphisms of any SU(n)-vector bundle. We show that ordinary connections on such SU(n)-vector bundle can be interpreted in a natural way as a noncommutative 1-form on…

dg-ga · Mathematics 2008-02-03 Michel Dubois-Violette , Thierry Masson

We consider deformations of finite or infinite dimensional Lie algebras over a field of characteristic 0. There is substantial confusion in the literature if one tries to describe all the non-equivalent deformations of a given Lie algebra.…

Representation Theory · Mathematics 2007-05-23 Alice Fialowski , Dmitry Fuchs

The coefficient algebra of a finite-dimensional Lie algebra on a finite-dimensional representation is defined as the subalgebra generated by all coefficients of the corresponding characteristic polynomial. We explore connections between…

Commutative Algebra · Mathematics 2025-11-14 Yin Chen , Runxuan Zhang

We consider finite-dimensional complex Lie algebras. Using certain complex parameters we generalize the concept of cohomology cocycles of Lie algebras. A special case is generalization of 1-cocycles with respect to the adjoint…

Mathematical Physics · Physics 2009-05-18 Jiri Hrivnak , Petr Novotny

Let $K$ be an algebraically closed field of characteristic zero and $A$ an integral $K$-domain. The Lie algebra $Der_{K}(A)$ of all $K$-derivations of $A$ contains the set $LND(A)$ of all locally nilpotent derivations. The structure of…

Rings and Algebras · Mathematics 2016-08-05 A. P. Petravchuk , K. Ya. Sysak

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 purpose of this paper is to extend the cohomology and conformal derivation theories of the classical Lie conformal algebras to Hom-Lie conformal algebras. In this paper, we develop cohomology theory of Hom-Lie conformal algebras and…

Rings and Algebras · Mathematics 2017-11-23 Jun Zhao , Lamei Yuan , Liangyun Chen

The aim of this paper is to study the cohomology theory of Reynolds Lie algebras equipped with derivations and to explore related applications. We begin by introducing the concept of Reynolds LieDer pairs. Subsequently, we construct the…

Rings and Algebras · Mathematics 2025-04-24 Basdouri Imed , Sadraoui Mohamed Amin

We define self-distributive structures in the categories of coalgebras and cocommutative coalgebras. We obtain examples from vector spaces whose bases are the elements of finite quandles, the direct sum of a Lie algebra with its ground…

Geometric Topology · Mathematics 2007-05-23 J. Scott Carter , Alissa Crans , Mohamed Elhamdadi , Masahico Saito

We present a formalization, in the theorem prover Lean, of the classification of solvable Lie algebras of dimension at most three over arbitrary fields. Lie algebras are algebraic objects which encode infinitesimal symmetries, and as such…

Logic in Computer Science · Computer Science 2025-05-27 Viviana del Barco , Gustavo Infanti , Exequiel Rivas , Paul Schwahn

A quandle is an algebraic system whose axioms generalize the algebraic structure of the point symmetries of symmetric spaces. In this paper, we give a definition of Euler characteristics for quandles. In particular, the quandle Euler…

Geometric Topology · Mathematics 2024-11-14 Ryoya Kai , Hiroshi Tamaru