Abstract
We consider the center-focus problem for a cubic system that generalizes the system considered in Differentsial’nye Uravneniya, 1978, vol. 14, no. 2, pp. 380–382.
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Russian Text © The Author(s), 2019, published in Differentsial’nye Uravneniya, 2019, Vol. 55, No. 12, pp. 1717–1721.
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Detchenya, L.V., Sadovskii, A.P. Nilpotent Centers of a Cubic System Reducible to a Nonlinear Vibration System. Diff Equat 55, 1665–1670 (2019). https://doi.org/10.1134/S0012266119120127
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DOI: https://doi.org/10.1134/S0012266119120127