Сравнение числа предельных циклов обобщенных систем Льенара, полученных различными методами

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В статье приводятся данные вычислений наибольшего числа малоамплитудных предельных циклов для двух типов обобщенных полиномиальных систем дифференциальных уравнений, формально совпадающих на некотором множестве частных случаев. Первая методика основана на методе усреднения и авторском алгоритме вычисления ляпуновских величин, вторая - заключалась в исследовании влияния малых возмущений на гамильтонову систему. Вопреки ожиданиям, различные методики в некоторых случаях дают несовпадающие результаты.

Предельный цикл, обобщенное уравнение льенара, 16-я проблема гильберта, слабый фокус

Короткий адрес: https://sciup.org/14835203

IDR: 14835203   |   УДК: 517.938   |   DOI: 10.18101/2304-5728-2017-1-10-17

Comparison of the number of limit cycles of generalized Lienard systems obtained by various methods

The article presents the computation data for the maximum number of low-amplitude limit cycles for two types of generalized polynomial systems of differential equations that formally coincide in a certain set of particular cases. The first technique is based on the method of averaging and our own algorithm for calculating Lyapunov quantities computation, the second technique - on investigation of influence of small perturbations on the Hamiltonian system. Contrary to expectations, various techniques in some cases give inconsistent results.

Список литературы Сравнение числа предельных циклов обобщенных систем Льенара, полученных различными методами

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