Results 31 to 40 of about 437,825 (261)

Symmetry analysis of the canonical connection on Lie groups: six-dimensional case with abelian nilradical and one-dimensional center

open access: yesAIMS Mathematics
In this article, the investigation into the Lie symmetry algebra of the geodesic equations of the canonical connection on a Lie group was continued. The key ideas of Lie group, Lie algebra, linear connection, and symmetry were quickly reviewed. The focus
Nouf Almutiben   +3 more
doaj   +1 more source

Laplace equations, conformal superintegrability and B\^ocher contractions [PDF]

open access: yes, 2015
Quantum superintegrable systems are solvable eigenvalue problems. Their solvability is due to symmetry, but the symmetry is often "hidden". The symmetry generators of 2nd order superintegrable systems in 2 dimensions close under commutation to define ...
Kalnins, E., Miller Jr, W., Subag, E.
core   +5 more sources

Disconnected 0-form and 2-group symmetries

open access: yesJournal of High Energy Physics, 2023
Quantum field theories can have both continuous and finite 0-form symmetries. We study global symmetry structures that arise when both kinds of 0-form symmetries are present. The global structure associated to continuous 0-form symmetries is described by
Lakshya Bhardwaj, Dewi S. W. Gould
doaj   +1 more source

A study of Bogoyavlenskii’s (2+1)-dimensional breaking soliton equation: Lie symmetry, dynamical behaviors and closed-form solutions

open access: yesResults in Physics, 2021
This paper employs the Lie symmetry analysis to investigate novel closed-form solutions to a (2+1)-dimensional Bogoyavlenskii’s breaking soliton equation.
Sachin Kumar   +4 more
doaj   +1 more source

Classical and Nonclassical symmetries of the (2+1)-dimensional Kuramoto-Sivashinsky equation

open access: yes, 2011
In this paper, we have studied the problem of determining the largest possible set of symmetries for an important example of nonlinear dynamical system: the Kuramoto-Sivashinsky (K-S) model in two spatial and one temporal dimensions.
Ahangari, Fatemeh, Nadjafikhah, Mehdi
core   +1 more source

Nonlocal Symmetries of Systems of Evolution Equations

open access: yesAdvances in Mathematical Physics, 2011
We prove that any potential symmetry of a system of evolution equations reduces to a Lie symmetry through a nonlocal transformation of variables. This fact is in the core of our approach to computation of potential and more general nonlocal symmetries of
Renat Zhdanov
doaj   +1 more source

Optical solitons with nonlocal-parabolic combo nonlinearity by Lie symmetry analysis coupled with modified G′/G-expansion

open access: yesResults in Physics, 2019
This paper obtains optical soliton solutions with parabolic law nonlinearity coupled in nonlocal nonlinear medium. Lie symmetry analysis coupled with modified G′/G-expansion scheme retrieves these solitons.
Anupma Bansal   +5 more
doaj   +1 more source

LIE SYMMETRIES FOR LATTICE EQUATIONS

open access: yesNonlinear Evolution Equations and Dynamical Systems, 2003
Summary: Lie symmetries has been introduced by Sophus Lie to study differential equations. It has been one of the most efficient way for obtaining exact analytic solution of differential equations. Here we show how one can extend this technique to the case of differential difference and difference equations.
openaire   +3 more sources

Differential Galois Theory and Lie Symmetries [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2015
We study the interplay between the differential Galois group and the Lie algebra of infinitesimal symmetries of systems of linear differential equations. We show that some symmetries can be seen as solutions of a hierarchy of linear differential systems.
Blázquez-Sanz, David   +2 more
openaire   +4 more sources

Classification of the symmetry Lie algebras for six-dimensional co-dimension two Abelian nilradical Lie algebras

open access: yesAIMS Mathematics
In this paper, we consider the symmetry algebra of the geodesic equations of the canonical connection on a Lie group. We mainly consider the solvable indecomposable six-dimensional Lie algebras with co-dimension two abelian nilradical that have an ...
Nouf Almutiben   +3 more
doaj   +1 more source

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