Abstract
It is demonstrated that for nondegenerate systems having a nonstationary nonlinearity the frequency condition k−1 + Re W(iΩ) ≥0 (k < ∞) ensures exponential absolute stability.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 15, No. 3, pp. 319–322, March, 1972.
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Pyatnitskii, E.S. Expansion of the frequency criterion of absolute stability for controllable systems with one nonlinear nonstationary element. Radiophys Quantum Electron 15, 235–237 (1972). https://doi.org/10.1007/BF02210660
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DOI: https://doi.org/10.1007/BF02210660