Geodesic
On the Stability of Linear Time-Varying Differential Equations
Trudy Instituta matematiki i mehaniki, Trudy Instituta Matematiki i Mekhaniki UrO RAN, Tome 28 (2022) no. 3, pp. 94-113 Cet article a éte moissonné depuis la source Math-Net.Ru

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The article discusses the stability of linear differential equations with time-varying coefficients. It is shown that, in contrast to equations with time-invariant coefficients, the condition for the characteristic polynomial to be Hurwitz for a linear differential equation with time-varying coefficients is neither necessary nor sufficient for the asymptotic stability of the differential equation. It is proved that the analog of Kharitonov's theorem on robust stability does not hold if the coefficients of the differential equation are time-varying.
Keywords: linear differential equations, stability, time-varying system, Kharitonov's theorem, robust stability.
Mots-clés : stable polynomial 
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V. A. Zaitsev; I. G. Kim. On the Stability of Linear Time-Varying Differential Equations. Trudy Instituta matematiki i mehaniki, Trudy Instituta Matematiki i Mekhaniki UrO RAN, Tome 28 (2022) no. 3, pp. 94-113. http://geodesic.mathdoc.fr/item/TIMM_2022_28_3_a7/

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