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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Celestial mechanics and dynamical astronomy 42 (1987), S. 201-213 
    ISSN: 1572-9478
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We show that time scaling transformations for Hamiltonian systems are infinitesimal canonical transformations in a suitable extended phase space constructed from geometrical considerations. We compute its infinitesimal generating function in some examples: regularization and blow up in celestial mechanics, classical mechanical systems with homogeneous potentials and Scheifele theory of satellite motion.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Zeitschrift für angewandte Mathematik und Physik 38 (1987), S. 10-20 
    ISSN: 1420-9039
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Description / Table of Contents: Zusammenfassung Wir betrachten die Topologie der Jacobi-Flächen im ebenen eingeschränkten 3-Körperproblem im Fall, daß das Massenverhältnisμ klein und die Jacobi-Konstante Null oder fast Null ist. Für diese Werte gibt es keine „zero velocity curves“, so daß es möglich ist, daß der dritte Körper aus dem Unendlichen kommt und mit den beiden andern kollidiert. Nach Regularisierung der Kollisionen und Hinzufügung eines 2-Torus im Unendlichen durch „blow-up“, kann gezeigt werden, daß die Jacobi-Fläche topologisch äquivalent zum orientierbaren [0,1]-Bündel über der „Klein bottle“ ist. Es werden Koordinaten definiert, so daß die Topologie diejenige des Würfels mit geeigneter Identifikation von Seiten ist. Andere Koordinaten, die der Physik des Problems besser angepaßt sind, erlauben eine detailliertere Beschreibung „im Unendlichen“, wo hyperbolische oder parabolische Bahnen die ins Unendliche entweichen oder daher kommen asymptotisch zu periodischen Lösungen auf dem Torus im Unendlichen sind.
    Notes: Abstract We consider the topological description of the Jacobi levels in the circular planar restricted 3-body problem, when the mass parameterμ is close to zero and the Jacobi constant is zero or close to zero. For these values of the constant there are no zero velocity curves, so that it is possible that the infinitesimal body comes from infinity and has collisions with the other 2 bodies. After regularization of such collisions and addition of a 2-torus at infinity through blow up, we show that the Jacobi level is topologically equivalent to the unique orientable [0, 1]-bundle over the Klein bottle. Then we find coordinates making explicit this topology as a cube where some of the faces are identified. More physical coordinates at infinity give a better description, where hyperbolic or parabolic orbits escaping to (or coming from) infinity are asymptotic to periodic orbits on the torus at infinity.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Acta applicandae mathematicae 11 (1988), S. 259-284 
    ISSN: 1572-9036
    Keywords: 58F05 ; 70H05 ; 70H15 ; 70F35 ; Blow up ; conservative mechanical system ; homogeneous function ; Hamiltonian system ; canonical transformation ; symplectic manifold ; contact manifold
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract We study manifolds describing the behavior of motions close to the origin and at infinity of configuration space, for mechanical systems with homogeneous potentials. We find an inversion between these behaviors when the sign of the degree of homogeneity is changed. In some cases, the blow up equations can be written in canonical form, by first reducing to a contact structure. A motivation for the use of blow-up techniques is given, and some examples are studied in detail.
    Type of Medium: Electronic Resource
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