Results 91 to 100 of about 11,157,685 (225)

Central potentials on spaces of constant curvature: The Kepler problem on the two-dimensional sphere S2 and the hyperbolic plane H2 [PDF]

, 2005
José F. Cariñena, Manuel F. Rañada, Mariano Santander   +2 more
openalex   +1 more source

Classical mechanics in noncommutative spaces: confinement and more

European Physical Journal C: Particles and Fields
We consider a semi-classical approximation to the dynamics of a point particle in a noncommutative space. In this approximation, the noncommutativity of space coordinates is described by a Poisson bracket.
Vladislav Kupriyanov, Maxim Kurkov, Alexey Sharapov   +2 more
doaj   +1 more source

Comment on ‘Kepler problem in Dirac theory for a particle with position-dependent mass’ [PDF]

, 2005
Antonio S. de Castro
openalex   +1 more source

Optimal Nodes Localization in Wireless Sensor Networks Using Nutcracker Optimizer Algorithms: Istanbul Area

IEEE Access
Node localization is a non-deterministic polynomial time (NP-hard) problem in Wireless Sensor Networks (WSN). It involves determining the geographical position of each node in the network.
Nabil Neggaz, Amir Seyyedabbasi, Abdelazim G. Hussien, Mekki Rahim, Mehmet Beskirli   +4 more
doaj   +1 more source

Novel hybrid kepler optimization algorithm for parameter estimation of photovoltaic modules

Scientific Reports
The parameter identification problem of photovoltaic (PV) models is classified as a complex nonlinear optimization problem that cannot be accurately solved by traditional techniques.
Reda Mohamed, Mohamed Abdel-Basset, Karam M. Sallam, Ibrahim M. Hezam, Ahmad M. Alshamrani, Ibrahim A. Hameed   +5 more
doaj   +1 more source

CHAOS, FRACTALS AND QUANTUM POINCARÉ RECURRENCES IN DIAMAGNETIC KEPLER PROBLEM [PDF]

, 2007
A. Ugulava, L. Chotorlishvili, Tamaz Kereselidze, V. Skrinnikov   +3 more
openalex   +1 more source

Fermion on Curved Spaces, Symmetries, and Quantum Anomalies

Symmetry, Integrability and Geometry: Methods and Applications, 2006
We review the geodesic motion of pseudo-classical spinning particles in curved spaces. Investigating the generalized Killing equations for spinning spaces, we express the constants of motion in terms of Killing-Yano tensors.
Mihai Visinescu
doaj  

Red Supergiant Problem Viewed from the Nebular Phase Spectroscopy of Type II Supernovae

The Astrophysical Journal
The red supergiant (RSG) problem refers to the observed dearth of luminous RSGs identified as progenitors of Type II supernovae (SNe II) in pre-SN imaging.
Qiliang Fang, Takashi J. Moriya, Keiichi Maeda   +2 more
doaj   +1 more source

Group theory of the Kepler problem

, 1965
E. C. G. Sudarshan, N. Mukunda, L. O’Raifeartaigh   +2 more
openalex   +1 more source

A generalization of the Kepler problem [PDF]

, 2008
Guowu Meng
openalex   +1 more source