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AbstractIn the paper [4] the author give a new method to study the existence and uniqueness of a solution on…

AbstractAuthorsMira-Cristiana Anisiu Tiberiu Popoviciu Institute of Numerical Analysis Romanian Academy, Romania George Bozis Department of Physics, University of Thessalonikim GR-54006,…

Abstract[Mathjax] Given a two-parametric family of curves \(f\) \(x,y,z)-c_{1},g\left(x,y,z\right) =c_{2}\), we look for potentials Vunder whose action a particle of…

Abstract[Mathjax] We nd galactic potentials described by polynomial perturbations of harmonic oscillators, which are compatible with families of orbits \(x^{p}…