Results 11 to 20 of about 11,457,962 (286)

Reduction and unfolding: the Kepler problem [PDF]

open access: yesInternational Journal of Geometric Methods in Modern Physics, 2005
In this paper we show, in a systematic way, how to relate the Kepler problem to the isotropic harmonic oscillator. Unlike previous approaches, our constructions are carried over in the Lagrangian formalism dealing with second order vector fields.
D'Avanzo, Antonella, Marmo, Giuseppe
core   +3 more sources

Weak Chaos in a Quantum Kepler Problem [PDF]

open access: green, 1997
Transition from regular to chaotic dynamics in a crystal made of singular scatterers $U(r)=\lambda |r|^{-\sigma}$ can be reached by varying either sigma or lambda.
Anderson   +25 more
core   +3 more sources

A Generalization of the Kepler Problem [PDF]

open access: yesPhysics of Atomic Nuclei, 2008
We construct and analyze a generalization of the Kepler problem. These generalized Kepler problems are parameterized by a triple $(D, \kappa, \mu)$ where the dimension $D\ge 3$ is an integer, the curvature $\kappa$ is a real number, the magnetic charge $\
A. O. Barut   +14 more
core   +5 more sources

The number radial coherent states for the generalized MICZ-Kepler problem [PDF]

open access: yes, 2015
We study the radial part of the MICZ-Kepler problem in an algebraic way by using the $su(1,1)$ Lie algebra. We obtain the energy spectrum and the eigenfunctions of this problem from the $su(1,1)$ theory of unitary representations and the tilting ...
Mota, R. D.   +2 more
core   +2 more sources

Chaotic Dynamics of the Kepler Problem with Oscillating Singularity [PDF]

open access: hybrid, 2016
We prove the presence of chaotic dynamics for the classical two-body Kepler problem with a time-periodic gravitational coefficient oscillating between two fixed values.
Alessandro Margheri, Pedro J. Torres
openalex   +2 more sources

Periodic orbits of the planar anisotropic generalized Kepler problem

open access: greenJournal of Mathematics and Physics, 2019
Many generalizations of the Kepler problem with homogeneous potential of degree −1/2 have been considered. Here, we deal with the generalized anisotropic Kepler problem with homogeneous potential of degree −1.
Jaume Llibre, Clàudìa Valls
openalex   +3 more sources

On the Regularization of the Kepler Problem [PDF]

open access: yesJournal of Symplectic Geometry, 2010
We show that for the Kepler problem the canonical Ligon-Schaaf regularization map can be understood in a straightforward manner as an adaptation of the Moser regularization.
de Laat, Tim, Heckman, Gert
core   +8 more sources

Regularization of Kepler problem in κ-spacetime [PDF]

open access: yesJournal of Mathematical Physics, 2016
In this paper, we regularize the Kepler problem on κ-spacetime in several different ways. First, we perform a Moser-type regularization and then we proceed for the Ligon-Schaaf regularization to our problem. In particular, generalizing Heckman and de Laat [J. Symplectic Geom.
Partha Guha, E. Harikumar, N. S. Zuhair
openaire   +5 more sources

Symmetries and stability of motions in the Newtonian and the Hookean potentials [PDF]

open access: yesTheoretical and Applied Mechanics, 2022
A new way of looking at symmetries is proposed, especially regarding their role in the stability of two-body motions in the Newtonian and the Hookean potentials, the two selected by Bertrand’s theorem. The role of the number of spatial dimensions is also
Carimalo Christian
doaj   +1 more source

A high-entropy image encryption scheme using optimized chaotic maps with Josephus permutation strategy [PDF]

open access: yesScientific Reports
With the rapid growth in the exchange of digital data, the problem of protecting images has become essential, particularly in sectors such as medicine, surveillance and secure communications.
Nawal El Ghouate   +8 more
doaj   +2 more sources

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