Conditions of existence quasiperiodic solutions for some ordinary differential equations of first and second order
Jordanka Mitevska, Marija Kujumdzieva-Nikoloska (2005)
Kragujevac Journal of Mathematics
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Jordanka Mitevska, Marija Kujumdzieva-Nikoloska (2005)
Kragujevac Journal of Mathematics
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Yuji Liu (2009)
Kragujevac Journal of Mathematics
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Fan, Qiyi, Wang, Wentao, Yi, Xuejun, Huang, Lihong (2010)
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Georgian Mathematical Journal
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Georgian Mathematical Journal
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Ershov, Yu.L. (2006)
Sibirskie Ehlektronnye Matematicheskie Izvestiya [electronic only]
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Geometry & Topology
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Valéry Covachev, Zlatinka Covacheva, Haydar Akça, Eada Al-Zahrani (2003)
Open Mathematics
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A neutral impulsive system with a small delay of the argument of the derivative and another delay which differs from a constant by a periodic perturbation of a small amplitude is considered. If the corresponding system with constant delay has an isolated ω-periodic solution and the period of the delay is not rationally dependent on ω, then under a nondegeneracy assumption it is proved that in any sufficiently small neighbourhood of this orbit the perturbed system has a unique almost...
Qi, Aiqin, Liu, Yansheng (2000)
Georgian Mathematical Journal
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Lorent, Andrew (2008)
Annales Academiae Scientiarum Fennicae. Mathematica
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Li, Zhixiang, Wang, Xiao (2006)
Electronic Journal of Differential Equations (EJDE) [electronic only]
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