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Lie group method provides an efficient tool to solve nonlinear partial differential equations. This paper suggests a fractional Lie group method for fractional partial differential equations. A time-fractional Burgers equation is used as an…

Mathematical Physics · Physics 2015-05-20 Guo-cheng Wu

Lie group symmetry analysis for systems of coupled, nonlinear ordinary differential equations is performed in order to obtain the entire solution space to Einstein's field equations for vacuum Bianchi spacetime geometries. The symmetries…

General Relativity and Quantum Cosmology · Physics 2013-11-20 Petros A. Terzis , T. Christodoulakis

Our aim in this paper is to deal with the dynamics of following higher order difference equation x_{n+1}=A+B((x_{n-m})/(x_{n}^2)) where A,B>0, and initial values are positive, and m={1,2,...}. Furthermore, we discuss the periodicity,…

Dynamical Systems · Mathematics 2021-12-21 Erkan Taşdemir , Melih Göcen , Yüksel Soykan

The study of the relation between Lie algebras and groups, and especially the derivation of new algebras from them, is a problem of great interest in mathematics and physics, because finding a new Lie group from an already known one also…

General Relativity and Quantum Cosmology · Physics 2013-08-23 Laura Andrianopoli , Nelson Merino , Felip Nadal , Mario Trigiante

We study generalized diffeomorphisms in exceptional geometry with U-duality group E_{n(n)} from an algebraic point of view. By extending the Lie algebra e_n to an infinite-dimensional Borcherds superalgebra, involving also the extension to…

High Energy Physics - Theory · Physics 2016-06-22 Jakob Palmkvist

Recent work has constructed neural networks that are equivariant to continuous symmetry groups such as 2D and 3D rotations. This is accomplished using explicit Lie group representations to derive the equivariant kernels and nonlinearities.…

Machine Learning · Computer Science 2022-12-08 Noah Shutty , Casimir Wierzynski

An unusual and surprising expansion of the form \[ p_n = \rho^{-n-1}(6n +\tfrac{18}5+ \tfrac{336}{3125} n^{-5}+\tfrac{1008}{3125} n^{-6} +\text{smaller order terms}), \] as $n\to\infty$, is derived for the probability $p_n$ that two…

Probability · Mathematics 2010-02-23 Hua-Huai Chern , Hsien-Kuei Hwang , Conrado Martínez

The main result of this article is an application of the theory of invariant convex cones of Lie algebras to the study of unitary representations of Lie supergroups. It also includes an exposition of recent results of the second author on…

Representation Theory · Mathematics 2010-12-14 Karl-Hermann Neeb , Hadi Salmasian

We establish some results about large restricted Lie algebras similar to those known in the Group Theory. As an application we use this group-theoretic approach to produce some examples of restricted as well as ordinary Lie algebras which…

Rings and Algebras · Mathematics 2007-05-23 Yuri Bahturin , Alexander Olshanskii

We write the Lagrangian of the general N=5 three-dimensional superconformal Chern-Simons theory, based on a basic Lie superalgebra, in terms of our recently introduced N=5 three-algebras. These include N=6 and N=8 three-algebras as special…

High Energy Physics - Theory · Physics 2011-07-12 Jakob Palmkvist

Starting from the classification of real Manin triples done in a previous paper we look for those that are isomorphic as 6-dimensional Lie algebras with the ad-invariant form used for construction of the Manin triples. We use several…

Quantum Algebra · Mathematics 2007-05-23 L. Snobl , L. Hlavaty

Harmonic functions of the three dimensional Lie groups defined on certain manifolds related to the Lie groups themselves and carrying all their unitary representations are explicitly constructed. The realisations of these Lie groups are…

Mathematical Physics · Physics 2017-01-30 R. Campoamor-Stursberg , M. Rausch de Traubenberg

If one has to attain high accuracy over long timescales during the numerical computation of the N-body problem, the method called Lie-integration is one of the most effective algorithms. In this paper we present a set of recurrence…

Earth and Planetary Astrophysics · Physics 2016-01-20 András Pál

The Lie symmetry method is applied to derive the point symmetries for the N-dimensional fractional heat equation. We find that that the numbers of symmetries and Lie brackets are reduced significantly as compared to the nonfractional order…

Analysis of PDEs · Mathematics 2020-01-22 Amlan K Halder , CT Duba , PGL Leach

The purpose of this paper is to study the relationships between an $n$-Hom-Lie algebra and its induced $(n+1)$-Hom-Lie algebra. We provide an overview of the theory and explore the structure properties such as ideals, center, derived…

Rings and Algebras · Mathematics 2015-04-28 Abdennour Kitouni , Abdenacer Makhlouf , Sergei Silvestrov

We establish a novel upper bound for the real solutions of the equation specified in the title, employing a generalized derivation-division algorithm. As a consequence, we also derive a new set of Chebyshev functions adapted specifically…

Dynamical Systems · Mathematics 2024-05-20 Daniel Panazzolo

In this book, I explored differential equations for operation in Lie group and for representations of group Lie in a vector space.

History and Overview · Mathematics 2013-09-05 Aleks Kleyn

The Linearization Theorem for proper Lie groupoids organizes and generalizes several results for classic geometries. Despite the various approaches and recent works on the subject, the problem of understanding invariant linearization…

Differential Geometry · Mathematics 2021-08-20 Matias del Hoyo , Mateus de Melo

For a given abelian group G, we classify the isomorphism classes of G-gradings on the simple Lie algebras of types A_n (n >= 1), B_n (n >= 2), C_n (n >= 3) and D_n (n > 4), in terms of numerical and group-theoretical invariants. The ground…

Rings and Algebras · Mathematics 2012-12-04 Yuri Bahturin , Mikhail Kotchetov

A construction of differential constraints compatible with partial differential equations is considered. Certain linear determining equations with parameters are used to find such differential constraints. They generalize the classical…

Mathematical Physics · Physics 2007-05-23 O. V. Kaptsov , A. V. Schmidt