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Symbolic Computation of an Arbitrary-Order Resonance Condition in a Hamiltonian System

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Abstract

The study of formal stability of equilibrium positions of a multiparametric Hamiltonian system in a generic case is traditionally carried out using its normal form under the condition of the absence of resonances of small orders. In this paper we propose a method of symbolic computation of the condition of existence of a resonance of arbitrary order for a system with three degrees of freedom. It is shown that this condition for each resonant vector can be represented as a rational algebraic curve. By methods of computer algebra the rational parametrization of this curve for the case of an arbitrary resonance is obtained. A model example of some two-parameter system of pendulum type is considered.

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ACKNOWLEDGMENTS

The authors express their gratitude to Professor A.D. Bruno for his useful remarks and discussion of this paper.

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This work was supported by ongoing institutional funding. No additional grants to carry out or direct this particular research were obtained.

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Correspondence to A. B. Batkhin or Z. Kh. Khaidarov.

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Translated by Yu. Kornienko

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Batkhin, A.B., Khaidarov, Z.K. Symbolic Computation of an Arbitrary-Order Resonance Condition in a Hamiltonian System. Program Comput Soft 49, 842–853 (2023). https://doi.org/10.1134/S0361768823080030

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  • DOI: https://doi.org/10.1134/S0361768823080030

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