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This article is cited in 1 scientific paper (total in 1 paper)
Special issue: In honor of Valery Kozlov for his 70th birthday
$N$-body Dynamics on an Infinite Cylinder: the Topological Signature in the Dynamics
Jaime Andradea, Stefanella Boattobc, Thierry Combotd, Gladston Duartecb, Teresinha J. Stuchie a Departamento de Matemática, Facutad de Ciencias, Universidad del Bıi o-Bıi o, Casilla 5-C,
Concepción, VIII-región, Chile
b Departamento de Matemática Aplicada, Instituto de Matemática, Universidade Federal de Rio de Janeiro,
68530, Rio de Janeiro, RJ, Brazil
c Barcelona Graduate School of Mathematics \& Departament de Matemàtiques i Informática,
Universitat de Barcelona,
Gran Via de les Corts Catalanes, 585, 08007, Barcelona, Spain
d Institut de Mathématiques de Bourgogne, Université de Bourgogne,
21078, Dijon, France
e Departamento de Fıisica-Matemática, Instituto de Fıisica, Universidade Federal de Rio de Janeiro,
Rio de Janeiro, RJ, Brazil
Abstract:
The formulation of the dynamics of $N$-bodies on the surface of an infinite cylinder is considered. We have chosen such a surface to be able to study the impact of the surface’s topology in the particle’s dynamics. For this purpose we need to make a choice of how to generalize the notion of gravitational potential on a general manifold. Following Boatto, Dritschel and Schaefer [5], we define a gravitational potential as an attractive central force which obeys Maxwell’s like formulas.
As a result of our theoretical differential Galois theory and numerical study — Poincaré sections, we prove that the two-body dynamics is not integrable. Moreover, for very low energies, when the bodies are restricted to a small region, the topological signature of the cylinder is still present in the dynamics. A perturbative expansion is derived for the force between the two bodies. Such a force can be viewed as the planar limit plus the topological perturbation. Finally, a polygonal configuration of identical masses (identical charges or identical vortices) is proved to be an unstable relative equilibrium for all $N>2$.
Keywords:
$N$-body problem, Hodge decomposition, central forces on manifolds, topology and integrability, differential Galois theory, Poincaré sections, stability of relative equilibria.
Received: 24.12.2019 Accepted: 10.01.2020
Citation:
Jaime Andrade, Stefanella Boatto, Thierry Combot, Gladston Duarte, Teresinha J. Stuchi, “$N$-body Dynamics on an Infinite Cylinder: the Topological Signature in the Dynamics”, Regul. Chaotic Dyn., 25:1 (2020), 78–110
Linking options:
https://www.mathnet.ru/eng/rcd1051 https://www.mathnet.ru/eng/rcd/v25/i1/p78
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