On the mechanism of stability loss |
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Authors: | V. V. Kozlov |
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Affiliation: | (1) Steklov Mathematical Institute, Russian Academy of Sciences, Moscow, Russia |
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Abstract: | We consider linear systems of differential equations admitting functions in the form of quadratic forms that do not increase along trajectories in the course of time. We find new relations between the inertia indices of these forms and the instability degrees of the equilibria. These assertions generalize well-known results in the oscillation theory of linear systems with dissipation and clarify the mechanism of stability loss, whereby nonincreasing quadratic forms lose the property of minimum. |
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