Global existence of periodic solutions of Liénard equations with finite delay

Dynamics of Continuous, Discrete and Impulsive Systems Series B: Application and Algorithm

Volumn 6, Issue 4, 1999, Pages 603-614

  Wei, Junjie ^a   Huang, Qichang ^a  

^a NORTHEAST NORMAL UNIVERSITY   (China)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0346409076     PISSN: 14928760     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (9)

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4. U. An Der Herden, Periodic solutions of a nonlinear second order differential equations with delay, J. Math. Anal. Appl., 70, (1979)599-609.
5. J. Hale, Theory of Functional Differential Equations, Springer-Verlag, New York, 1977.
6. R.D. Nussbaum, Periodic solutions of some nonlinear autonomous functional differential equations, Ann. Math. Pura. Appl., 10,(1974)263-306.
7. A.S. Somolinos, Periodic solutions of the sunflower equation x″(t) + (a/r)x′(t) + (b/r)sinx(t - r) = 0, Quar. Appl. Math., (1978)4:465-478.
8. B. Zhang, Periodic solutions of the retarded liénard equations, Reprint.
9. J. Wei and Q. Huand, Hopf bifurcation of sunflower equation parameterized by delay, Chinese Science Bulletin, 40, (1995)12:981-983.