ON THE MEROMORPHIC NON-INTEGRABILITY OF SOME N-BODY PROBLEMS

被引:16
|
作者
Morales-Ruiz, Juan J. [1 ]
Simon, Sergi [2 ]
机构
[1] Univ Politecn Madrid, Ingn Civil ETSI Caminos, Dept Matemat & Informat Aplicadas, E-28040 Madrid, Spain
[2] Univ Limoges, XLIM UMR CNRS 6172, Dept Math Informat, F-87060 Limoges, France
关键词
Obstructions to integrability (nonintegrability criteria) in Hamiltonian systems; differential algebra; Dynamical systems in classical and celestial mechanics; N-body problems; REGULAR POLYGON SOLUTIONS; RELATIVE EQUILIBRIUM; INTEGRAL MANIFOLDS; SIMPLER PROOF; NONEXISTENCE; OPERATORS; THEOREM;
D O I
10.3934/dcds.2009.24.1225
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We present a proof of the meromorphic non-integrability of the planar N-Body Problem for some special cases. A simpler proof is added to those already existing for the Three-Body Problem with arbitrary masses. The N-Body Problem with equal masses is also proven non-integrable. Furthermore, a new general result on additional integrals is obtained which, applied to these specific cases, proves the non-existence of an additional integral for the general Three-Body Problem, and provides for an upper bound on the amount of additional integrals for the equal-mass Problem for N = 4, 5, 6. These results appear to qualify differential Galois theory, and especially a new incipient theory stemming from it, as an amenable setting for the detection of obstructions to Hamiltonian integrability.
引用
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页码:1225 / 1273
页数:49
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