Geodesic
Periodic solutions for a Liénard equation with two deviating arguments
Electronic journal of differential equations, Tome 2009 (2009)
In this work, we prove the existence and uniqueness of periodic solutions for a Lienard equation with two deviating arguments. Our main tools are the Mawhin's continuation theorem and the Schwarz inequality. We obtain our results under weaker conditions than those in [14], as shown by an example in the last section of this artticle.
Classification : 34C25, 34D40
Keywords: periodic solution, Liénard equation, deviating argument 
@article{EJDE_2009__2009__a134,
     author = {Wang,  Yong and Tian,  Junkang},
     title = {Periodic solutions for a {Li\'enard} equation with two deviating arguments},
     journal = {Electronic journal of differential equations},
     year = {2009},
     volume = {2009},
     zbl = {1186.34093},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a134/}
}
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%A Tian,  Junkang
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Wang,  Yong; Tian,  Junkang. Periodic solutions for a Liénard equation with two deviating arguments. Electronic journal of differential equations, Tome 2009 (2009). http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a134/