Basins of Convergence in the Collinear Restricted Four-body Problem with a Repulsive Manev Potential
APPLICATIONS AND APPLIED MATHEMATICS-AN INTERNATIONAL JOURNAL(2020)
Abstract
The Newton-Raphson basins of convergence, related to the equilibrium points, in the collinear restricted four-body problem with repulsive Manev potential are numerically investigated. We monitor the parametric evolution of the position as well as of the stability of the equilibrium points, as a function of the parameter e. The multivariate Newton-Raphson optimal method is used for revealing the basins of convergence, by classifying dense grids of initial conditions in several types of two-dimensional planes. We perform a systematic and thorough analysis in an attempt to understand how the parameter e affects the geometry as well as the basin entropy of the convergence regions. The convergence areas are related with the required number of iterations and also with the corresponding probability distributions.
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Key words
Restricted four-body problem,Basins of convergence,Fractal basin boundaries,Basin entropy
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