Results 41 to 50 of about 2,411,038 (347)

Discrete Symmetries Analysis and Exact Solutions of the Inviscid Burgers Equation

open access: yesDiscrete Dynamics in Nature and Society, 2012
We discuss the Lie point symmetries and discrete symmetries of the inviscid Burgers equation. By employing the Lie group method of infinitesimal transformations, symmetry reductions and similarity solutions of the governing equation are given.
Hongwei Yang   +3 more
doaj   +1 more source

Lie symmetries applied to interval integration

open access: yesAutomatica, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Julien Damers, Luc Jaulin, Simon Rohou
openaire   +3 more sources

Birkhoff’s Theorem and Lie Symmetry Analysis

open access: yesJournal of High Energy Physics, Gravitation and Cosmology, 2021
Three dimensional space is said to be spherically symmetric if it admits SO(3) as the group of isometries. Under this symmetry condition, the Einsteins Field equations for vacuum, yields the Schwarzschild Metric as the unique solution, which essentially is the statement of the well known Birkhoffs Theorem.
Mukherjee, Avijit, Roy, Subham B
openaire   +3 more sources

A List of 1 + 1 Dimensional Integrable Equations and Their Properties [PDF]

open access: yes, 2001
This paper contains a list of known integrable systems. It gives their recursion-, Hamiltonian-, symplectic- and cosymplectic operator, roots of their symmetries and their scaling ...
Jing Ping Wang, Wang, Jing Ping
core   +1 more source

On Lie Symmetries of Hyperbolic Model Metric of SL(n, R) Geometry

open access: yesپژوهش‌های ریاضی, 2020
Introduction ‎  Symmetries of an equation are closely related to conservation‎ laws‎. ‎Noether's theorem provides a method for finding conservation laws of differential‎ equations arising from a known Lagrangian and having a known Lie symmetry‎.
Rohollah Bakhshandeh Chamazkoti
doaj  

Exploring the Lie symmetries, conservation laws, bifurcation analysis and dynamical waveform patterns of diverse exact solution to the Klein–Gordan equation

open access: yesOptical and quantum electronics
This paper presents a comprehensive analysis of the (1+1)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength ...
Tariq Mahmood   +3 more
semanticscholar   +1 more source

Lie symmetries for systems of evolution equations [PDF]

open access: yes, 2017
The Lie symmetries for a class of systems of evolution equations are studied. The evolution equations are defined in a bimetric space with two Riemannian metrics corresponding to the space of the independent and dependent variables of the differential ...
A. Paliathanasis, M. Tsamparlis
semanticscholar   +1 more source

Algebraic Properties of First Integrals for Scalar Linear Third-Order ODEs of Maximal Symmetry

open access: yesAbstract and Applied Analysis, 2013
By use of the Lie symmetry group methods we analyze the relationship between the first integrals of the simplest linear third-order ordinary differential equations (ODEs) and their point symmetries. It is well known that there are three classes of linear
K. S. Mahomed, E. Momoniat
doaj   +1 more source

Conservation laws, symmetry reductions, and exact solutions of some Keller–Segel models

open access: yesAdvances in Difference Equations, 2018
In this paper, three Keller–Segel models are considered from the point of Lie symmetry analysis, conservation laws, symmetry reduction, and exact solutions. By means of Lie symmetry analysis, we first obtain all the symmetries for the three models. Based
Lihua Zhang, Fengsheng Xu
doaj   +1 more source

Lie symmetries of the shigesada-Kawasaki-Teramoto system [PDF]

open access: yesCommunications in nonlinear science & numerical simulation, 2016
The Shigesada–Kawasaki–Teramoto system, which consists of two reaction-diffusion equations with variable cross-diffusion and quadratic nonlinearities, is considered.
R. Cherniha, V. Davydovych, L. Muzyka
semanticscholar   +1 more source

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