Literature cited
N. N. Bogoliubov and Y. A. Mitropolsky, Asymptotic Methods in the Theory of Nonlinear Oscillations, Gordon (1961).
Yu. A. Mitropol, Skii, The Method of Averaging in Nonlinear Mechanics [in Russian], Naukova Dumka, Kiev (1971).
L. I. Mandel'shtam, Lectures on the Theory of Oscillations [in Russian], Nauka, Moscow (1972).
E. A. Grebenikov and Yu. A. Ryabov, The Constructive Methods of Analysis of Nonlinear Systems [in Russian], Nauka, Moscow (1979).
Author information
Authors and Affiliations
Additional information
Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 34, No. 5, pp. 655–656, September–October, 1982.
Rights and permissions
About this article
Cite this article
Khoma, G.P. Systems of van der pol equations in the resonance case. Ukr Math J 34, 536–538 (1982). https://doi.org/10.1007/BF01093150
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01093150