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Normalization and averaging on compact lie groups in nonlinear mechanics

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Abstract

We consider the method of normal forms, the Bogolyubov averaging method, and the method of asymptotic decomposition proposed by Yu. A. Mitropol’skii and the author of this paper. Under certain assumptions about group-theoretic properties of a system of zero approximation, the results obtained by the method of asymptotic decomposition coincide with the results obtained by the method of normal forms or the Bogolyubov averaging method. We develop a new algorithm of asymptotic decomposition by a part of the variables and its partial case — the algorithm of averaging on a compact Lie group. For the first time, it became possible to consider asymptotic expansions of solutions of differential equations on noncommutative compact groups.

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Authors
  1. A. K. Lopatin
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Additional information

Institute of Mathematics, Ukrainian Academy of Sciences, Kiev. Published in Ukrainskii Matematicheskii Zhurnal, Vol. 49, No. 1, pp. 47–67, January, 1997.

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Lopatin, A.K. Normalization and averaging on compact lie groups in nonlinear mechanics. Ukr Math J 49, 51–74 (1997). https://doi.org/10.1007/BF02486616

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  • DOI: https://doi.org/10.1007/BF02486616

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