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  • perturbation theory  (2)
  • GEOSCIENCES (GENERAL)  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Singularly weighted symplectic forms and applications to asteroid motion (1995)
    Springer
    Celestial mechanics and dynamical astronomy 62 (1995), S. 23-41 
    Details
    ISSN: 1572-9478
    Keywords: Hamiltonian dynamics ; symplectic forms ; asteroid motion ; perturbation theory ; secular resonances
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract New techniques to study Hamiltonian systems with Hamiltonian forcing are proposed. They are based on singularly weighted symplectic forms and transformations which preserve these forms. Applications pertaining to asteroid motion are outlined. These involve the presence of both Jupiter and Saturn.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00692067
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Mass-Weighted Symplectic Forms for the N-Body Problem (1998)
    Springer
    Celestial mechanics and dynamical astronomy 72 (1998), S. 187-199 
    Details
    ISSN: 1572-9478
    Keywords: symplectic form ; symplectic mapping ; Hamiltonian formalism ; perturbation theory ; N-body problem
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Mass-weighted symplectic forms provide a unified framework for the treatment of both finite and vanishingly small masses in the N-body problem. These forms are introduced, compared to previous approaches, and their properties are discussed. Applications to symplectic mappings, the definition of action-angle variables for the Kepler problem, and Hamiltonian perturbation theory are outlined
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008374927645
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    Paper (German National Licenses)
    Fulltext
  • 3
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    Geodynamics from satellites (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The NASA Geodynamics Program is developing a variety of techniques in support of national programs in geodynamics, geomagnetics and earthquake hazard reduction. Global tectonics are to be observed by satellite laser tracking and radio interferometry, which will be used to measure the movements of extended (greater than 200 km) regions to an accuracy of 3 cm, while for shorter distances, lasers enable a more rapid measuring of regional strain accumulation patterns than ground systems. The techniques of Doppler tracking between two satellites to measure the gravity field over the ocean is also under NASA study
    Keywords: GEOSCIENCES (GENERAL)
    Type: AAS PAPER 79-243 , Annual Meeting; Oct 29, 1979 - Nov 01, 1979; Los Angeles, CA
    Format: text
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    NASA TECHNICAL REPORTS
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