A COMPARISON METHOD, AND INVESTIGATION OF THE STABILITY OF SYSTEMS OF ORDINARY DIFFERENTIAL-EQUATIONS WITH PERTURBATIONS .2статья
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Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
Аннотация:A system with a small parameter is investigated. Sufficient conditions for stability as well as sufficient conditions for instability are given. It is studied the case when a vector Lyapunov function for the unperturbed system is known.