Hamiltonian dynamics on the symplectic extended phase space for autonomous and non-autonomous systems

J Struckmeier - Journal of Physics A: Mathematical and General, 2005 - iopscience.iop.org
We will present a consistent description of Hamiltonian dynamics on the'symplectic
extended phase space'that is analogous to that of a time-independent Hamiltonian system …

Invariance and first integrals of continuous and discrete Hamiltonian equations

V Dorodnitsyn, R Kozlov - Journal of Engineering Mathematics, 2010 - Springer
The relation between symmetries and first integrals for both continuous canonical
Hamiltonian equations and discrete Hamiltonian equations is considered. The observation …

Fractional time-scales Noether theorem with Caputo Δ derivatives for Hamiltonian systems

X Tian, Y Zhang - Applied Mathematics and Computation, 2021 - Elsevier
This paper examines a new Noether theorem for Hamiltonian systems with Caputo Δ
derivatives based on fractional time-scales calculus, which overcomes the difficulties unified …

A group theoretical identification of integrable cases of the Liénard-type equation ẍ+ f (x) ẋ+ g (x)=. I. Equations having nonmaximal number of Lie point symmetries

SN Pandey, PS Bindu, M Senthilvelan… - Journal of Mathematical …, 2009 - pubs.aip.org
A group theoretical identification of integrable cases of the Liénard-type equation ẍ+ f (x)
ẋ+ g (x)=⁠. I. Equations having nonmaximal number of Lie point symmetries| Journal of …

Time-dependent Hamiltonian mechanics on a locally conformal symplectic manifold

M Zając, C Sardón, O Ragnisco - Symmetry, 2023 - mdpi.com
In this paper we aim at presenting a concise but also comprehensive study of time-
dependent (t-dependent) Hamiltonian dynamics on a locally conformal symplectic (lcs) …

Nonautonomous Hamiltonian Systems and Morales–Ramis Theory I. The Case

PB Acosta-Humánez - SIAM Journal on Applied Dynamical Systems, 2009 - SIAM
In this paper we present an approach toward the comprehensive analysis of the
nonintegrability of differential equations in the form ̈x=f(x,t) which is analogous to …

First integrals of difference Hamiltonian equations

V Dorodnitsyn, R Kozlov - Journal of Physics A: Mathematical …, 2009 - iopscience.iop.org
In the present paper, the well-known Noether's identity, which represents the connection
between symmetries and first integrals of Euler–Lagrange equations, is rewritten in terms of …

Symmetries and invariants for the 2D-Ricci flow model

R Cimpoiasu, R Constantinescu - Journal of Nonlinear Mathematical …, 2006 - Springer
Symmetries and invariants for the 2D-Ricci flow model Page 1 Journal of Nonlinear
Mathematical Physics Volume 13, Number 2 (2006), 285–292 Article Symmetries and invariants …

An exact magnetic-moment invariant of charged-particle gyromotion

H Qin, RC Davidson - Physical review letters, 2006 - APS
For the motion of a charged particle in a uniform, time-dependent axial magnetic field B (t)
ez, it is shown that there is an exact magnetic-moment invariant of the particle dynamics M …

The equivalence principle as a Noether symmetry

S Capozziello, C Ferrara - arXiv preprint arXiv:2401.09737, 2024 - arxiv.org
The Equivalence Principle is considered in the framework of metric-affine gravity. We show
that it naturally emerges as a Noether symmetry starting from a general non-metric theory. In …