Browsing by Author "Popa, Mihail"
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Item ON STABILITY OF SOME EXAMPLES OF TERNARY DIFFERENTIAL CRITICAL SYSTEMS WITH QUADRATIC NONLINEARITIES(2023) Neagu, Natalia; Popa, MihailStarting with Example 1 of A.M. Lyaponov’s thesis [1] (§32), which represents a ternary differential system with quadratic nonlinearities, examples of differential systems of the generalized Darboux type were constructed in the critical case. The stability conditions of the unperturbed motion described by these systems were determinedItem PROFESSOR ALEXANDRU SUBĂ ON HIS 70TH BIRTHDAY(CEP al Universității Pedagogice de Stat „Ion Creangă”, 2023) Cozma, Dumitru; Popa, MihailItem The Stability Conditions of Unperturbed Motion Governed by Differential System with Nonlinearities of Fifth Degree [Articol](2024) Neagu, Natalia; Popa, MihailAccording to Lyapunov’s first method of stability of unperturbed motion, there were determined the stability conditions for the differential system with nonlinearities of fifth degree.