Abstract
We justify the averaging method for systems with delay that pass through resonances in the process of evolution. We obtain an estimate of the error of the method that explicitly depends on a small parameter.
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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 50, No. 2, pp. 299–303, February, 1998.
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Bigun, Y.I. Averaging method in multifrequency systems with delay. Ukr Math J 50, 342–348 (1998). https://doi.org/10.1007/BF02513456
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DOI: https://doi.org/10.1007/BF02513456