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  • 1
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 37 (1996), S. 2748-2761 
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: The Manev problem (a two-body problem given by a potential of the form A/r+B/r2, where r is the distance between particles and A,B are positive constants) comprises several important physical models, having its roots in research done by Isaac Newton. We provide its analytic solution, then completely describe its global flow using McGehee coordinates and topological methods, and offer the physical interpretation of all solutions. We prove that if the energy constant is negative, the orbits are, generically, precessional ellipses, except for a zero-measure set of initial data, for which they are ellipses. For zero energy, the orbits are precessional parabolas, and for positive energy they are precessional hyperbolas. In all these cases, the set of initial data leading to collisions has positive measure. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 34 (1993), S. 5671-5690 
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: Maneff's gravitational law explains, with a very good approximation, the perihelion advance of the inner planets as well as the orbit of the Moon. Here the invariant set of planar isosceles solutions of the three-body problem for Maneff's model is studied. The application of Maneff's law in atomic physics provides, in the case of the isosceles problem, a model with relativistic correction for the helium atom. It is shown that every solution leads to a collision singularity and consequently has no periodic orbits. Using McGehee's technique the triple-collision singularity is blown up and the binary-collision solutions are regularized. The flow on the collision manifold is shown to be nongradientlike and the set of collision/ejection solutions is described. The center manifold and the block-regularization problems are analyzed. The network of homoclinic and heteroclinic orbits is further discussed. Finally an anisotropic model having the property that the flow on the collision manifold changes drastically when the mass parameter is varied is studied, giving rise to a subcritical pitchfork bifurcation of the equilibria.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Celestial mechanics and dynamical astronomy 44 (1988), S. 261-265 
    ISSN: 1572-9478
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract It is shown that in then-body problem with generalized attraction law, the sets of initial conditions which lead to Wintner's collinear, respectively flat, motion are nowhere dense relative to the set of initial conditions that define solutions inR 3.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Celestial mechanics and dynamical astronomy 60 (1994), S. 91-98 
    ISSN: 1572-9478
    Keywords: N-body problem ; noncollision singularities ; symmetry configurations ; superhyperbolic expansion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A large class of symmetry solutions of the Newtonian n-body problem cannot end in a noncollision singularity nor expand faster than any constant multiple of time.
    Type of Medium: Electronic Resource
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