Abstract
For the system a periodic solution exists if for each i one of the following inequalities holds:
for α(t)≤u≤β(t). Here α(t) and β(t) are the lower and upper vector functions for system (1) and the periodic conditions; A≥0, B≥0. Bibliography: 1 titles.
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Literature Cited
N. Rouche and J. Mawhin,Ordinary Differential Equations, London (1980).
Additional information
Translated by B. M. Bekker.
Translated fromZapiski Nauchnykh Seminarov POMI, Vol. 202, 1992, pp. 190–203.
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Yakovlev, M.N. Periodic solutions of second-order systems with one-sided restrictions to the growth of the right-hand side with respect to the first derivative. J Math Sci 79, 1150–1159 (1996). https://doi.org/10.1007/BF02366136
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DOI: https://doi.org/10.1007/BF02366136