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Prog. Theor. Phys. Vol. 62 No. 3 (1979) pp. 620-628
A Perturbation Theory of a Quasi-Periodic Motion
— An Asymptotic Expansion Method
—
Akira Itō
Department of Physics, Kyoto University, Kyoto 606
(Received March 17, 1979)
Abstract:
Quasi-periodic motion (QPM) is structurally unstable and a small perturbation cases a transition to qualitatively different states. This problem is investigated by the asymptotic expansion method of Bogoliubov and Mitropolsky. It is shown that the structurally unstable QPM is in a sense “stable”, and has its reality contrary to Ruelle's suggestion.
URL :
http://ptp.ipap.jp/link?PTP/62/620/
DOI : 10.1143/PTP.62.620
References:
- P. Glansdorff and I. Prigogine, Thermodynamic Theory of Structure, Stability and Fluctuations (Wiely-Interscience, New York, 1971).
For more recent studies, see papers in Prog. Theor. Phys. Suppl. No. 64 (1978).
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D. Ruelle and F. Takens, Commun. Math. Phys. 20 (1971), 167[CrossRef].
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J. Sherman and J. McLaughlin, Commun. Math. Phys. 58 (1978), 9[CrossRef].
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