Abstract:Abstract. For the Newtonian n-body problem in R n−2 with n ≥ 3 we prove that the following two statements are equivalent.(a) Let x be a Dziobek central configuration having one mass located at the center of mass. (b) Let x be a central configurations formed by n − 1 equal masses located at the vertices of a regular (n − 2)-simplex together with an arbitrary mass located at its barycenter.
“…Lemma 1 Dziobek equations (Dziobek 1900;Llibre 2015;Llibre et al 2015) for a five-body problem when the five masses have position vectors r 0 = (0, w), r 1 = (−1, 0), r 2 = (0, s), r 3 = (1, 0), r 4 = (0, −t), where s, t, w ∈ R are…”
We consider a symmetric five-body problem with three unequal collinear masses on the axis of symmetry. The remaining two masses are symmetrically placed on both sides of the axis of symmetry. Regions of possible central configurations are derived for the four-and five-body problems. These regions are determined analytically and explored numerically. The equations of motion are regularized using Levi-Civita type transformations and then the phase space is investigated for chaotic and periodic orbits by means of Poincaré surface of sections.
“…Lemma 1 Dziobek equations (Dziobek 1900;Llibre 2015;Llibre et al 2015) for a five-body problem when the five masses have position vectors r 0 = (0, w), r 1 = (−1, 0), r 2 = (0, s), r 3 = (1, 0), r 4 = (0, −t), where s, t, w ∈ R are…”
We consider a symmetric five-body problem with three unequal collinear masses on the axis of symmetry. The remaining two masses are symmetrically placed on both sides of the axis of symmetry. Regions of possible central configurations are derived for the four-and five-body problems. These regions are determined analytically and explored numerically. The equations of motion are regularized using Levi-Civita type transformations and then the phase space is investigated for chaotic and periodic orbits by means of Poincaré surface of sections.
“…Also, let r ij � ‖r i − r j ‖ represent the distance between the ith and jth bodies. An n-body system forms a planar noncollinear central configuration [5,6] if…”
In the current article, we study the kite four-body problems with the goal of identifying global regions in the mass parameter space which admits a corresponding central configuration of the four masses. We consider two different types of symmetrical configurations. In each of the two cases, the existence of a continuous family of central configurations for positive masses is shown. We address the dynamical aspect of periodic solutions in the settings considered and show that the minimizers of the classical action functional restricted to the homographic solutions are the Keplerian elliptical solutions. Finally, we provide numerical explorations via Poincaré cross-sections, to show the existence of periodic and quasiperiodic solutions within the broader dynamical context of the four-body problem.
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