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We distinguish a class of irreducible finite representations of conformal Lie (super)algebras. These representations (called universally defined) are the simplest ones from the computational point of view: a universally defined…

Quantum Algebra · Mathematics 2008-08-04 Pavel Kolesnikov

In this expository article, we describe the classification of the subalgebras of the rank 2 semisimple Lie algebras. Their semisimple subalgebras are well-known, and in a recent series of papers, we completed the classification of the…

Rings and Algebras · Mathematics 2024-08-21 Andrew Douglas , Joe Repka

In this paper we establish a Gr\"{o}bner-Shirshov bases theory for Lie algebras over commutative rings. As applications we give some new examples of special Lie algebras (those embeddable in associative algebras over the same ring) and…

Rings and Algebras · Mathematics 2011-05-30 L. A. Bokut , Yuqun Chen , Yongshan Chen

The paper presents the complete classification of Automorphic Lie Algebras based on $\mathfrak{sl}_n (\mathbb{C})$, where the symmetry group $G$ is finite and the orbit is any of the exceptional $G$-orbits in $\overline{\mathbb{C}}$. A key…

Mathematical Physics · Physics 2019-11-20 Vincent Knibbeler , Sara Lombardo , Jan A. Sanders

Recently, Grozman and Leites returned to the original Cartan's description of Lie algebras to interpret the Melikyan algebras (for p<7) and several other little-known simple Lie algebras over algebraically closed fields for p=3 as…

Representation Theory · Mathematics 2007-10-29 Sofiane Bouarroudj , Dimitry Leites

We classify simple linearly compact n-Lie superalgebras with n>2 over a field F of characteristic 0. The classification is based on a bijective correspondence between non-abelian n-Lie superalgebras and transitive Z-graded Lie superalgebras…

Quantum Algebra · Mathematics 2014-01-22 Nicoletta Cantarini , Victor G. Kac

In this paper, we establish a complete structural description of flat Lorentzian Lie groups, i.e., Lie groups endowed with a flat left invariant Lorentzian metric, thereby resolving a long-standing open problem in the theory of…

Differential Geometry · Mathematics 2026-05-12 Mohamed Boucetta

I give a short proof of the following algebraic statement: if a vertex algebra is simple, then its underlying Lie conformal algebra is either abelian, or it is an irreducible central extension of a simple Lie conformal algebra.

Quantum Algebra · Mathematics 2012-10-19 Alessandro D'Andrea

We describe the structure of the algebraic group of automorphisms of all simple finite dimensional Lie superalgebras. Using this and \'etale cohomology considerations, we list all different isomorphism classes of the corresponding twisted…

Rings and Algebras · Mathematics 2007-05-23 Dimitar Grantcharov , Arturo Pianzola

Let $M$ be a super Riemann surface with holomorphic distribution $\mathcal{D}$ and $N$ a symplectic manifold with compatible almost complex structure $J$. We call a map $\Phi\colon M\to N$ a super $J$-holomorphic curve if its differential…

Differential Geometry · Mathematics 2022-04-22 Enno Keßler , Artan Sheshmani , Shing-Tung Yau

We consider Lie minimal surfaces, the critical points of the simplest Lie sphere invariant energy, in Riemannian space forms. These surfaces can be characterized via their Euler-Lagrange equations, which take the form of differential…

Differential Geometry · Mathematics 2023-10-25 Joseph Cho , Masaya Hara , Denis Polly , Tomohiro Tada

Let $L$ be an $(m\vert n)$-dimensional nilpotent Lie superalgebra where $m + n \geq 4$ and $n \geq 1$. This paper classifies such nilpotent Lie superalgebras $L$ with a derived subsuperalgebra of dimension $m+n-2$ such that $\gamma(L) = m +…

Commutative Algebra · Mathematics 2024-06-07 Afsaneh Shamsaki , Peyman Niroomand

Starting from a purely algebraic procedure based on the commutant of a subalgebra in the universal enveloping algebra of a given Lie algebra, the notion of algebraic Hamiltonians and the constants of the motion generating a polynomial…

Mathematical Physics · Physics 2023-07-20 Rutwig Campoamor-Stursberg , Danilo Latini , Ian Marquette , Yao-Zhong Zhang

The "curved" super Grassmannian is the supervariety of subsupervarieties of purely odd dimension $k$ in a~supervariety of purely odd dimension $n$, unlike the "usual" super Grassmannian which is the supervariety of linear subsuperspacies of…

Mathematical Physics · Physics 2023-06-22 Arkady Onishchik

A Lie-Rinehart algebra consists of a commutative algebra and a Lie algebra with additional structure which generalizes the mutual structure of interaction between the algebra of functions and the Lie algebra of smooth vector fields on a…

Symplectic Geometry · Mathematics 2007-05-23 Johannes Huebschmann

A classical theorem of Veldkamp describes the center of an enveloping algebra of a Lie algebra of a semi-simple algebraic group in characteristic $p.$ We generalize this result to a class of Lie algebras with a property that they arise as…

Quantum Algebra · Mathematics 2021-04-06 Akaki Tikaradze

We determine the universal central extension of the Lie algebra of hamiltonian vector fields, thereby classifying its central extensions. Furthermore, we classify the central extensions of the Lie algebra of symplectic vector fields, of the…

Symplectic Geometry · Mathematics 2016-12-21 Bas Janssens , Cornelia Vizman

We give a comprehensive survey of the theory of finite dimensional Lie algebras over an algebraically closed field of characteristic p>0 and announce that for p>3 the classification of finite dimensional simple Lie algebras is complete. Any…

Rings and Algebras · Mathematics 2007-05-23 Alexander Premet , Helmut Strade

For a restricted Lie superalgebra g over an algebraically closed field of characteristic p > 2, we generalize the deformation method of Premet and Skryabin to obtain results on the p-power and 2-power divisibility of dimensions of…

Representation Theory · Mathematics 2009-10-13 Lei Zhao

The main purpose of this paper is to study the finite-dimensional solvable Lie algebras described in its title, which we call {\em minimal non-${\mathcal N}$}. To facilitate this we investigate solvable Lie algebras of nilpotent length $k$,…

Rings and Algebras · Mathematics 2016-08-25 David A. Towers
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